1 00:00:02,083 --> 00:00:03,375 WILLIAM SHATNER: Shocking discoveries 2 00:00:03,500 --> 00:00:07,250 revealing glimpses of mankind's ancient past, 3 00:00:07,375 --> 00:00:12,458 the bones of giants that lived centuries ago 4 00:00:12,542 --> 00:00:15,750 and primitive beast men 5 00:00:15,875 --> 00:00:18,125 roaming the wilderness. 6 00:00:19,167 --> 00:00:20,875 Of all the mysteries 7 00:00:21,000 --> 00:00:24,500 that mankind has been able to solve, 8 00:00:24,583 --> 00:00:28,458 one still baffles our collective curiosity. 9 00:00:28,583 --> 00:00:30,042 Where did we come from? 10 00:00:30,167 --> 00:00:33,708 Were human beings the result of a spontaneous, 11 00:00:33,833 --> 00:00:34,875 divine creation? 12 00:00:35,042 --> 00:00:36,417 Or is it possible 13 00:00:36,542 --> 00:00:40,042 that we, as some evidence suggests, 14 00:00:40,167 --> 00:00:44,333 evolved over time from other species? 15 00:00:44,458 --> 00:00:48,292 And was there possibly a missing link 16 00:00:48,375 --> 00:00:51,083 that made us what we are today? 17 00:00:51,208 --> 00:00:54,333 Well, that is what we'll try and find out. 18 00:00:54,417 --> 00:00:56,417 ♪ ♪ 19 00:01:08,292 --> 00:01:10,708 (creatures chittering) 20 00:01:10,833 --> 00:01:13,625 SHATNER: Since the dawn of man, human beings have wondered 21 00:01:13,750 --> 00:01:16,208 how we came into existence. 22 00:01:16,333 --> 00:01:18,625 And throughout history, 23 00:01:18,750 --> 00:01:21,583 people have proposed many different theories 24 00:01:21,708 --> 00:01:27,833 to try and explain the profound mystery of mankind's origins. 25 00:01:30,625 --> 00:01:32,458 Since the earliest written records, it's clear 26 00:01:32,583 --> 00:01:34,333 that human cultures around the world 27 00:01:34,417 --> 00:01:36,625 have been curious about our origins. 28 00:01:36,750 --> 00:01:40,417 Where did we come from? It's a great question. 29 00:01:40,542 --> 00:01:44,500 And the question means something different to everyone. 30 00:01:44,583 --> 00:01:49,292 Every culture has different origin stories. 31 00:01:49,375 --> 00:01:53,958 In many creation stories about human origins, 32 00:01:54,042 --> 00:01:57,750 humans are fully formed from the start. 33 00:01:59,250 --> 00:02:02,083 For example, in Genesis chapter one 34 00:02:02,208 --> 00:02:05,417 of the Hebrew Bible, we get a very structured, 35 00:02:05,542 --> 00:02:09,667 very orderly account of creation. 36 00:02:09,792 --> 00:02:12,000 In this narrative, 37 00:02:12,083 --> 00:02:15,167 through a series of spoken acts, 38 00:02:15,250 --> 00:02:19,583 God creates the heavens, the Earth, 39 00:02:19,708 --> 00:02:24,167 creates land, the seas, 40 00:02:24,292 --> 00:02:27,167 and then populates all of these domains 41 00:02:27,333 --> 00:02:31,542 with fish and birds and creeping things. 42 00:02:31,708 --> 00:02:34,125 And then, on day six, 43 00:02:34,208 --> 00:02:37,667 God creates the humans. 44 00:02:37,833 --> 00:02:39,375 And Genesis records that God 45 00:02:39,500 --> 00:02:42,167 speaks the humans into existence, 46 00:02:42,292 --> 00:02:46,667 male and female, in His own image and likeness. 47 00:02:46,792 --> 00:02:50,208 The implication here is that these humans would look 48 00:02:50,375 --> 00:02:52,917 just like we look today. 49 00:02:54,875 --> 00:02:57,667 MICHIO KAKU: Throughout history, before the coming of science, 50 00:02:57,792 --> 00:03:01,292 all we had were mythologies about our origins. 51 00:03:01,375 --> 00:03:05,125 Stories, tales handed down generation by generation 52 00:03:05,208 --> 00:03:06,667 over thousands of years. 53 00:03:06,792 --> 00:03:07,875 That's all we had. 54 00:03:09,167 --> 00:03:11,500 But then we had Charles Darwin, 55 00:03:11,625 --> 00:03:16,167 and Charles Darwin said that we are related to the apes. 56 00:03:16,292 --> 00:03:18,375 And that was a huge shock. 57 00:03:19,625 --> 00:03:21,750 SHATNER: In 1871, Charles Darwin published 58 00:03:21,875 --> 00:03:25,500 The Descent of Man, which proposed the theory 59 00:03:25,667 --> 00:03:29,583 that humans and apes share a common ancestor. 60 00:03:29,708 --> 00:03:33,375 SHAPIRO: The natural evolutionary history of our lineage 61 00:03:33,542 --> 00:03:36,208 is that we were monkeys and then we were apes 62 00:03:36,375 --> 00:03:39,375 and then, eventually, we became Homo sapiens. 63 00:03:39,542 --> 00:03:42,667 But when and how this happened, it's still something 64 00:03:42,750 --> 00:03:44,667 that scientists are trying to piece together 65 00:03:44,750 --> 00:03:48,167 from the often fragmentary fossil record. 66 00:03:49,708 --> 00:03:52,167 SHATNER: Ever since Darwin's groundbreaking work, 67 00:03:52,250 --> 00:03:54,250 many have theorized that there could have been 68 00:03:54,375 --> 00:03:56,500 a so-called "missing link" 69 00:03:56,625 --> 00:03:59,542 between us and our primitive ancestors 70 00:03:59,667 --> 00:04:03,042 that would explain how modern humans came to be. 71 00:04:03,208 --> 00:04:06,333 But in recent years, scientists have suggested 72 00:04:06,458 --> 00:04:10,042 that this idea may be too simplistic, 73 00:04:10,208 --> 00:04:12,708 and that the truth about mankind's origins 74 00:04:12,833 --> 00:04:17,000 is far more complicated and mysterious. 75 00:04:17,167 --> 00:04:18,667 KIRSTEN FISHER: I think our idea that there might be 76 00:04:18,792 --> 00:04:20,958 a missing link in human evolution 77 00:04:21,083 --> 00:04:24,167 stems from the way humans 78 00:04:24,292 --> 00:04:26,458 may be inherently uncomfortable with the idea 79 00:04:26,583 --> 00:04:30,208 that evolution doesn't... hasn't progressed towards us 80 00:04:30,375 --> 00:04:32,750 on purpose or with any particular direction in mind. 81 00:04:34,042 --> 00:04:35,375 In the relative scheme of things, 82 00:04:35,542 --> 00:04:37,667 we're just a very small branch 83 00:04:37,792 --> 00:04:41,250 in a much more diverse tree of living things. 84 00:04:41,375 --> 00:04:43,792 Which is kind of an amazing thought. 85 00:04:45,250 --> 00:04:46,500 Human evolution in the past 86 00:04:46,625 --> 00:04:48,375 has been seen as a sort of line. 87 00:04:48,542 --> 00:04:50,417 You see that sort of typical, 88 00:04:50,542 --> 00:04:53,458 uh, an ape hunched over and slowly standing up. 89 00:04:53,583 --> 00:04:57,333 But we're now realizing that it's not true. 90 00:04:57,500 --> 00:05:00,667 In our past, there were multiple different species 91 00:05:00,750 --> 00:05:04,333 that actually had similar traits to modern-day humans. 92 00:05:04,500 --> 00:05:06,958 And so, evolution is not linear. 93 00:05:07,042 --> 00:05:09,833 It's not even a tree, it's more of like a-a brambly bush. 94 00:05:10,000 --> 00:05:10,917 It's all over the place. 95 00:05:12,792 --> 00:05:15,042 SHATNER: Could it be that there is not one missing link 96 00:05:15,208 --> 00:05:16,708 but rather many different species 97 00:05:16,833 --> 00:05:19,458 that formed the human evolutionary tree? 98 00:05:20,667 --> 00:05:23,333 And if so, could they have had a significant effect 99 00:05:23,458 --> 00:05:26,500 on the origins of mankind? 100 00:05:26,667 --> 00:05:29,917 To answer that question, perhaps we should begin 101 00:05:30,042 --> 00:05:34,167 by examining the species we're most closely related to, 102 00:05:34,292 --> 00:05:36,708 the Neanderthals. 103 00:05:44,542 --> 00:05:47,542 Genetics company 23andMe announces 104 00:05:47,667 --> 00:05:50,667 their at-home testing kits can now detect 105 00:05:50,792 --> 00:05:55,167 how much of a person's DNA comes from the Neanderthals. 106 00:05:55,292 --> 00:05:57,917 Neanderthals are an extinct species 107 00:05:58,042 --> 00:06:00,083 that were very similar to humans 108 00:06:00,208 --> 00:06:03,625 and died out roughly 30,000 years ago. 109 00:06:03,708 --> 00:06:08,875 But the 23andMe tests have shown that there is a small percentage 110 00:06:09,042 --> 00:06:14,417 of Neanderthal DNA in each and every one of us. 111 00:06:14,542 --> 00:06:17,375 REAGAN: With the advent of these designer DNA tests, 112 00:06:17,500 --> 00:06:21,917 it's making us rethink the way humans evolved. 113 00:06:22,042 --> 00:06:28,375 Neanderthals are a subspecies of Homo sapiens. 114 00:06:28,500 --> 00:06:30,167 We share a common ancestor with them 115 00:06:30,250 --> 00:06:33,500 around 800, 700,000 years ago. 116 00:06:33,625 --> 00:06:36,375 They existed in what is Europe, the Middle East, 117 00:06:36,500 --> 00:06:38,875 and basically dominated the ice age. 118 00:06:40,125 --> 00:06:41,458 And hopefully, now that we know 119 00:06:41,583 --> 00:06:43,333 that we have Neanderthal DNA in our genome, 120 00:06:43,417 --> 00:06:44,833 we'll be more interested in actually learning 121 00:06:44,958 --> 00:06:46,000 about our past. 122 00:06:47,542 --> 00:06:50,250 KAKU: This is a shock, 'cause we used to think 123 00:06:50,375 --> 00:06:52,667 that we didn't mate with anybody else. 124 00:06:52,792 --> 00:06:55,333 But using the science of DNA, 125 00:06:55,458 --> 00:06:58,500 we begin to realize, "Hey, there was a lot of mating 126 00:06:58,625 --> 00:07:02,208 that went back and forth between Neanderthals and humans." 127 00:07:02,375 --> 00:07:04,583 We now have data to work with 128 00:07:04,708 --> 00:07:08,792 to retrace the family tree of our race. 129 00:07:10,042 --> 00:07:12,167 SHATNER: Modern humans 130 00:07:12,292 --> 00:07:17,333 and Neanderthals are both what scientists refer to as hominins, 131 00:07:17,500 --> 00:07:20,125 a group of species that includes mankind 132 00:07:20,250 --> 00:07:22,500 and its closest relatives. 133 00:07:22,583 --> 00:07:26,833 Thus far, fossils of 21 different hominin species 134 00:07:27,000 --> 00:07:30,000 have been found, and new genetic discoveries 135 00:07:30,125 --> 00:07:33,292 are revealing that we have much more in common 136 00:07:33,375 --> 00:07:36,250 with the Neanderthals and other hominins 137 00:07:36,375 --> 00:07:38,167 than previously thought. 138 00:07:38,292 --> 00:07:39,958 ANDREW COLLINS: Neanderthal fossils 139 00:07:40,042 --> 00:07:44,167 first came to light in the early part of the 19th century. 140 00:07:44,292 --> 00:07:48,833 But at that time, they were dismissed as inferior to us. 141 00:07:48,958 --> 00:07:54,167 So the idea that modern humans have Neanderthal DNA in them 142 00:07:54,292 --> 00:07:57,000 is incredibly important, 143 00:07:57,083 --> 00:08:01,792 because it shows that they are our distant cousins. 144 00:08:02,750 --> 00:08:04,333 We're realizing now, more and more, 145 00:08:04,458 --> 00:08:07,750 that they were, in every respect, human. 146 00:08:07,875 --> 00:08:11,875 If you had a Neanderthal today and you dressed them in a suit, 147 00:08:12,000 --> 00:08:13,875 would you know it was a Neanderthal? 148 00:08:14,042 --> 00:08:16,792 The answer is probably you wouldn't. 149 00:08:16,917 --> 00:08:19,000 They were great, uh, toolmakers and users. 150 00:08:19,167 --> 00:08:22,000 They left behind art. 151 00:08:23,375 --> 00:08:25,667 Different jewelry as well. 152 00:08:25,792 --> 00:08:27,708 We're finding out that Neanderthals 153 00:08:27,833 --> 00:08:30,708 were actually burying their dead, 154 00:08:30,875 --> 00:08:35,042 which shows that they were invested in their loved ones. 155 00:08:35,167 --> 00:08:37,792 What we've learned by studying Neanderthal DNA 156 00:08:37,917 --> 00:08:41,375 is that some traits that Neanderthals had 157 00:08:41,542 --> 00:08:44,833 were passed into modern human populations. 158 00:08:44,917 --> 00:08:47,292 One of the traits that came from Neanderthals 159 00:08:47,375 --> 00:08:49,917 was a propensity to have diabetes. 160 00:08:50,042 --> 00:08:52,750 And so it ended up getting passed on, 161 00:08:52,875 --> 00:08:55,000 even though it provided a little bit of a disadvantage 162 00:08:55,167 --> 00:08:56,750 to those who had it. 163 00:08:58,542 --> 00:09:01,542 Our closest relative is the Neanderthal, 164 00:09:01,708 --> 00:09:05,708 and they're gone, but they also survive in our DNA. 165 00:09:05,833 --> 00:09:08,292 The more we can learn about them, 166 00:09:08,375 --> 00:09:10,583 the more we learn about us. 167 00:09:10,708 --> 00:09:13,583 Did the Neanderthals play an important role 168 00:09:13,708 --> 00:09:15,708 in the evolution of modern humans? 169 00:09:15,833 --> 00:09:18,917 Or could it be that they only represent 170 00:09:19,042 --> 00:09:21,083 one piece of the puzzle? 171 00:09:21,208 --> 00:09:24,542 Because recently, scientists unearthed the bones 172 00:09:24,667 --> 00:09:27,833 of another ancient species, in Asia, 173 00:09:27,958 --> 00:09:30,417 that may have played a role in our development. 174 00:09:30,542 --> 00:09:34,167 A species that was never known to exist. 175 00:09:43,625 --> 00:09:46,417 SHATNER: Archaeologists conducting excavations 176 00:09:46,542 --> 00:09:49,000 within the dark recesses of the Liang Bua cave 177 00:09:49,083 --> 00:09:53,500 uncover the skeletal remains of a primitive human. 178 00:09:53,667 --> 00:09:56,792 Oddly, the bones appear to belong to an adult 179 00:09:56,875 --> 00:09:58,875 less than four feet tall. 180 00:09:59,042 --> 00:10:02,292 And genetic analysis reveals that the person's short stature 181 00:10:02,417 --> 00:10:04,417 was not due to deformity. 182 00:10:04,542 --> 00:10:08,208 Remarkably, this individual belonged 183 00:10:08,333 --> 00:10:11,250 to a previously unknown species 184 00:10:11,375 --> 00:10:14,333 of miniature humans 185 00:10:14,458 --> 00:10:17,833 that lived 60,000 years ago. 186 00:10:17,958 --> 00:10:21,000 TOCHERI: The team of scientists excavating on Flores 187 00:10:21,125 --> 00:10:24,083 uncovered the partial skeleton which we now know as LB-1, 188 00:10:24,208 --> 00:10:25,667 or Liang Bua One. 189 00:10:26,958 --> 00:10:29,542 It immediately sent shockwaves around the world. 190 00:10:29,667 --> 00:10:31,208 We know it's a member of our genus Homo 191 00:10:31,375 --> 00:10:34,625 because it has characteristics of its teeth and jaws 192 00:10:34,750 --> 00:10:37,000 that we use to define our genus. 193 00:10:37,167 --> 00:10:39,667 So it's these features that help us understand 194 00:10:39,792 --> 00:10:43,125 that it is closely related to us, but smaller. 195 00:10:45,583 --> 00:10:48,083 SHATNER: After further study, the newly discovered species 196 00:10:48,208 --> 00:10:53,667 of miniature humans was given the name Homo floresiensis, 197 00:10:53,750 --> 00:10:57,750 after the isle of Flores on which it was discovered. 198 00:10:59,750 --> 00:11:01,500 The $64 million question is how did the ancestors 199 00:11:01,625 --> 00:11:04,000 of Homo floresiensis reach Flores? 200 00:11:05,042 --> 00:11:07,667 Flores is a oceanic island. 201 00:11:07,750 --> 00:11:10,417 That means it's never been connected by land 202 00:11:10,542 --> 00:11:14,958 to either the Asian continent or the Australian continent. 203 00:11:15,083 --> 00:11:17,875 It's long been thought that only modern humans 204 00:11:18,000 --> 00:11:23,250 were clever enough to somehow reach these kinds of islands 205 00:11:23,375 --> 00:11:25,667 by crossing open water. 206 00:11:25,792 --> 00:11:28,208 And so, to find Homo floresiensis 207 00:11:28,375 --> 00:11:30,458 on this oceanic island 208 00:11:30,542 --> 00:11:33,833 shows us how much we underestimate 209 00:11:33,958 --> 00:11:36,833 earlier hominins in terms of their dispersal capabilities. 210 00:11:36,917 --> 00:11:40,292 JIM VIEIRA: What's most interesting is they found tools 211 00:11:40,417 --> 00:11:43,167 on the isle Flores. 212 00:11:43,292 --> 00:11:46,708 Finding tools on this isolated Indonesian island 213 00:11:46,875 --> 00:11:50,292 opens up a Pandora's box of ideas. 214 00:11:50,375 --> 00:11:52,125 How did they get there, 215 00:11:52,250 --> 00:11:54,625 how far back do these beings exist 216 00:11:54,750 --> 00:11:57,917 and what level of sophistication did they have? 217 00:11:59,042 --> 00:12:00,542 TOCHERI: Homo floresiensis disappears 218 00:12:00,708 --> 00:12:02,750 roughly about 50,000 years ago. 219 00:12:02,875 --> 00:12:05,250 But we only have evidence from this one cave. 220 00:12:05,375 --> 00:12:08,833 And so, I think there's still a lot that we need to uncover, 221 00:12:08,917 --> 00:12:11,250 to figure out the most likely explanation 222 00:12:11,375 --> 00:12:13,083 for their extinction. 223 00:12:15,208 --> 00:12:17,000 SHATNER: Due to their stature, 224 00:12:17,083 --> 00:12:20,833 some anthropologists began calling Homo floresiensis 225 00:12:20,958 --> 00:12:25,333 "the hobbits," in reference to the furry-footed characters 226 00:12:25,458 --> 00:12:30,417 from Middle-earth popularized by author J.R.R. Tolkien 227 00:12:30,542 --> 00:12:34,833 in his 1937 book The Hobbit, 228 00:12:34,917 --> 00:12:38,500 which has led many to wonder, could hobbit-sized humans 229 00:12:38,625 --> 00:12:41,000 be part of a missing link? 230 00:12:42,625 --> 00:12:46,500 The hobbit is the prime example of saying, "Hang on, stop, 231 00:12:46,667 --> 00:12:48,208 and start thinking of what's going on here." 232 00:12:49,792 --> 00:12:53,250 As time goes, we're finding more and more evidence 233 00:12:53,375 --> 00:12:57,125 that there was a range of different kinds of humans. 234 00:12:58,458 --> 00:12:59,667 KAKU: In science, 235 00:12:59,792 --> 00:13:01,875 we always have to keep an open mind, 236 00:13:02,000 --> 00:13:04,042 even when things, uh, disturb 237 00:13:04,208 --> 00:13:07,167 our sense of who we are and where we came from. 238 00:13:07,292 --> 00:13:10,833 We're just beginning to realize that The Lord of the Rings 239 00:13:10,958 --> 00:13:15,042 is really a paradigm for other species out there, 240 00:13:15,208 --> 00:13:18,833 lurking, that have not yet been discovered. 241 00:13:18,958 --> 00:13:21,333 Homo sapiens are not necessarily 242 00:13:21,458 --> 00:13:23,083 the only game in town. 243 00:13:24,375 --> 00:13:26,375 SHATNER: The discovery of Homo floresiensis 244 00:13:26,500 --> 00:13:30,500 proves that humans were just one of many intelligent species 245 00:13:30,625 --> 00:13:33,333 to inhabit Earth in the past. 246 00:13:33,417 --> 00:13:37,042 But remarkably, there could be evidence 247 00:13:37,208 --> 00:13:40,250 of not only hobbit-sized humans 248 00:13:40,375 --> 00:13:43,375 but also a species of giants that once lived 249 00:13:43,542 --> 00:13:46,167 in what is now modern Russia. 250 00:13:48,875 --> 00:13:52,917 The Altai Mountains, Siberia. 251 00:13:54,125 --> 00:13:57,542 Archaeologists conducting excavations inside a cave 252 00:13:57,708 --> 00:14:00,583 make an unexpected discovery. 253 00:14:01,833 --> 00:14:06,833 They find two enormous human teeth, 254 00:14:06,958 --> 00:14:10,208 twice the size of a modern person's. 255 00:14:11,708 --> 00:14:14,250 What they found was some massive teeth that were so big 256 00:14:14,375 --> 00:14:16,167 they thought they were cave bear teeth. 257 00:14:16,292 --> 00:14:19,417 But then, they were sequenced, and they realized 258 00:14:19,542 --> 00:14:23,000 it's a new human cousin who may have been seven, 259 00:14:23,125 --> 00:14:26,792 eight foot tall, with massive skulls and jaws. 260 00:14:26,875 --> 00:14:29,083 It's really a curveball to anthropology. 261 00:14:30,708 --> 00:14:32,125 SHATNER: Further analysis of the teeth 262 00:14:32,250 --> 00:14:36,208 revealed they were more than 50,000 years old, 263 00:14:36,375 --> 00:14:40,167 and belonged to a previously unknown human subspecies 264 00:14:40,250 --> 00:14:44,333 that has been named the Denisovans. 265 00:14:46,375 --> 00:14:49,833 From what little evidence of the bones and the teeth 266 00:14:49,958 --> 00:14:51,500 that have been found, 267 00:14:51,583 --> 00:14:54,500 not only at the Denisova Cave in Siberia... 268 00:14:56,125 --> 00:14:58,167 ...but also a huge jawbone 269 00:14:58,292 --> 00:15:02,292 that was found in a cave on the Tibetan Plateau, 270 00:15:02,417 --> 00:15:05,917 there is every indication that giants 271 00:15:06,042 --> 00:15:11,208 really did walk the Earth in ancient times. 272 00:15:13,125 --> 00:15:15,917 SHATNER: Could the human family tree 273 00:15:16,042 --> 00:15:19,833 have once included a branch with actual giants? 274 00:15:19,958 --> 00:15:22,333 Many experts believe it's possible, 275 00:15:22,458 --> 00:15:25,125 not only because of the fossil evidence 276 00:15:25,250 --> 00:15:30,333 but also because legends of extraordinarily large beings 277 00:15:30,458 --> 00:15:33,417 have persisted for thousands of years. 278 00:15:35,500 --> 00:15:38,708 In the European tradition, we have, uh, creatures 279 00:15:38,875 --> 00:15:43,167 like giants that are very, very widespread. 280 00:15:43,250 --> 00:15:47,042 We know now that folklore can last thousands of years. 281 00:15:47,208 --> 00:15:50,875 So, could ancient people have encountered Denisovans 282 00:15:51,042 --> 00:15:53,292 and interpreted them as giants, 283 00:15:53,375 --> 00:15:56,083 as sort of brutish, as living differently from us, 284 00:15:56,208 --> 00:15:59,292 but still able to, uh, interact with us? 285 00:15:59,417 --> 00:16:02,417 Or maybe they dug up some bones or stumbled across them 286 00:16:02,542 --> 00:16:04,792 and said, "Wow, these guys look really different than we do," 287 00:16:04,875 --> 00:16:06,542 and then came up with the stories. 288 00:16:06,708 --> 00:16:11,167 I'm sure there are other archaic versions of humanity 289 00:16:11,292 --> 00:16:14,333 out there that we have not yet discovered. 290 00:16:14,458 --> 00:16:20,083 So I think we're just beginning to unravel the family tree. 291 00:16:20,208 --> 00:16:23,958 There are other hidden branches out there 292 00:16:24,083 --> 00:16:26,000 that have not yet been found 293 00:16:26,083 --> 00:16:28,250 because we don't have evidence yet. 294 00:16:28,375 --> 00:16:32,167 But I think we will, as the years go by. 295 00:16:32,292 --> 00:16:36,167 Many experts now believe that early humans coexisted 296 00:16:36,250 --> 00:16:39,875 with a number of different species that were similar to us. 297 00:16:40,042 --> 00:16:44,208 But if that's true, then what happened to them? 298 00:16:44,375 --> 00:16:46,833 Did they all just die out? 299 00:16:47,000 --> 00:16:50,917 Or could some still exist in remote areas 300 00:16:51,042 --> 00:16:53,208 all over the world? 301 00:17:01,375 --> 00:17:04,667 SHATNER: 27-year-old Dean Harrison 302 00:17:04,792 --> 00:17:06,375 is out for a late-night jog 303 00:17:06,542 --> 00:17:09,708 in a wooded area near the town of Ormeau. 304 00:17:09,875 --> 00:17:14,875 Suddenly, he sees a large creature moving in the forest. 305 00:17:15,000 --> 00:17:17,750 (low grumble) 306 00:17:17,875 --> 00:17:19,208 HARRISON: I got these chills 307 00:17:19,333 --> 00:17:20,583 that I could not explain that went 308 00:17:20,708 --> 00:17:24,250 from my head to my toes, and then back up again. 309 00:17:25,208 --> 00:17:26,667 My hair went on end, 310 00:17:26,750 --> 00:17:29,875 because I could hear it walking through the swamp. 311 00:17:30,042 --> 00:17:32,000 Crunch, crunch, crunch. 312 00:17:33,000 --> 00:17:34,167 Pulling up the foliage 313 00:17:34,333 --> 00:17:37,625 out of the ground and throwing it 314 00:17:37,708 --> 00:17:40,250 through the rest of the forest. 315 00:17:40,375 --> 00:17:43,333 I moved my eyes to see this huge silhouette 316 00:17:43,500 --> 00:17:47,833 standing there in the bush line right behind me. 317 00:17:48,000 --> 00:17:52,125 We're talking about eight feet, roughly. 318 00:17:52,250 --> 00:17:53,833 There was something about this that just, 319 00:17:53,958 --> 00:17:58,750 alarm bells went off in my head, and I ran as fast as I could. 320 00:18:00,708 --> 00:18:02,208 SHATNER: Although Dean's nighttime encounter 321 00:18:02,333 --> 00:18:04,792 with the enormous creature was brief, 322 00:18:04,875 --> 00:18:06,667 further research led him to believe 323 00:18:06,750 --> 00:18:10,167 that he had encountered an elusive species 324 00:18:10,250 --> 00:18:14,375 that is commonly referred to as the yowie. 325 00:18:15,792 --> 00:18:17,167 LYLE BLACKBURN: The yowie is a hair-covered, 326 00:18:17,250 --> 00:18:19,250 manlike creature that's said 327 00:18:19,375 --> 00:18:21,458 to live on the Australian mainland. 328 00:18:23,208 --> 00:18:24,792 There's been thousands of sightings 329 00:18:24,917 --> 00:18:26,708 of this creature over the years, 330 00:18:26,875 --> 00:18:30,875 and stories of it even date back to Aboriginal legends. 331 00:18:31,000 --> 00:18:35,208 HARRISON: The Aboriginals had a lot of names for this creature. 332 00:18:35,333 --> 00:18:40,458 There was yahoo or yuree, yaree, youree, 333 00:18:40,583 --> 00:18:42,417 depending on which dialect and-and which area 334 00:18:42,542 --> 00:18:44,958 you came from that-- which, how you pronounce it. 335 00:18:45,042 --> 00:18:47,667 The first sightings were written in the papers 336 00:18:47,792 --> 00:18:50,542 in Australia since the 1800s. 337 00:18:50,708 --> 00:18:53,583 Most people describe them like a big human. 338 00:18:53,708 --> 00:18:59,167 The head sits on the shoulders and a little bit protruded. 339 00:18:59,292 --> 00:19:01,750 Massive shoulders like cannonballs. 340 00:19:01,875 --> 00:19:05,833 Very, very muscular. Deep, muscular chest. 341 00:19:05,958 --> 00:19:08,750 Very long arms, compared to a human. 342 00:19:08,875 --> 00:19:10,875 Uh, shorter legs. 343 00:19:11,000 --> 00:19:14,833 Deep-set eyes and heavy eye ridges. 344 00:19:14,917 --> 00:19:17,667 Uh, protruding jaw. 345 00:19:17,792 --> 00:19:19,750 Quite a flat, splayed nose. 346 00:19:19,875 --> 00:19:22,000 You can get them anywhere up to about nine, 347 00:19:22,125 --> 00:19:24,875 even ten feet tall, some people say. 348 00:19:25,000 --> 00:19:26,833 And there's no shortage of them 349 00:19:26,958 --> 00:19:29,250 because the sightings are growing. 350 00:19:29,375 --> 00:19:32,083 SHATNER: Dean's encounter inspired him to form a group 351 00:19:32,208 --> 00:19:38,625 known as Australian Yowie Research, or AYR. 352 00:19:38,750 --> 00:19:41,167 HARRISON: We have basically created a group 353 00:19:41,250 --> 00:19:44,500 where people can turn to and look for the answers 354 00:19:44,625 --> 00:19:47,625 once they have an encounter with one of these creatures. 355 00:19:47,708 --> 00:19:51,417 On our expeditions, we've had a lot of sightings 356 00:19:51,542 --> 00:19:55,333 and encounters over the course of the last 25 years 357 00:19:55,458 --> 00:19:57,958 along the Great Dividing Range from the bottom end of Victoria 358 00:19:58,083 --> 00:20:00,542 all the way to the top end of Australia. 359 00:20:03,792 --> 00:20:08,208 SHATNER: Could a species of giant, ape-like humans 360 00:20:08,333 --> 00:20:11,625 really be hiding throughout Australia? 361 00:20:11,708 --> 00:20:14,417 It may sound far-fetched to some. 362 00:20:14,542 --> 00:20:16,833 But the truth is that the numerous sightings 363 00:20:16,958 --> 00:20:18,500 of the yowie aren't the only evidence 364 00:20:18,667 --> 00:20:22,583 that a large cousin of man may still be living in the wild. 365 00:20:24,125 --> 00:20:26,750 Because there are reports of similar creatures 366 00:20:26,875 --> 00:20:29,875 all over the world. 367 00:20:30,000 --> 00:20:32,125 The general idea of an undiscovered 368 00:20:32,250 --> 00:20:35,167 large, ape-like creature living in the woods 369 00:20:35,292 --> 00:20:37,542 is very common around the globe. 370 00:20:37,667 --> 00:20:42,208 Whether we're talking about the Himalayas for the Yeti, 371 00:20:42,333 --> 00:20:44,500 the U.S. for Bigfoot, 372 00:20:44,583 --> 00:20:46,917 or whether we're talking about Australia and New Zealand 373 00:20:47,042 --> 00:20:48,875 for the yowie, 374 00:20:49,000 --> 00:20:52,333 this is something that appears to be a worldwide creature. 375 00:20:52,458 --> 00:20:55,542 Evolutionary biologist Jane Goodall at one point said 376 00:20:55,667 --> 00:20:58,583 it was possible that such a creature could exist. 377 00:20:58,708 --> 00:21:00,292 And when you have someone with that sort 378 00:21:00,417 --> 00:21:03,583 of a scientific reputation that will say 379 00:21:03,708 --> 00:21:06,833 there is a possibility that this creature exists, 380 00:21:06,917 --> 00:21:08,333 that's very compelling evidence. 381 00:21:10,417 --> 00:21:12,417 BLACKBURN: If we look back at early man, 382 00:21:12,542 --> 00:21:16,083 there's evidence of similar types of hominids. 383 00:21:16,208 --> 00:21:20,250 If they developed in some shadowy place 384 00:21:20,375 --> 00:21:22,667 and continued to survive and evolve, 385 00:21:22,750 --> 00:21:24,667 these early humans could have become 386 00:21:24,792 --> 00:21:29,208 what we know as Bigfoot, yowie or the Yeti. 387 00:21:29,333 --> 00:21:33,000 And if we were to actually find undeniable photo 388 00:21:33,167 --> 00:21:35,750 or video evidence of these creatures, 389 00:21:35,875 --> 00:21:38,583 it would completely change the way we've thought 390 00:21:38,708 --> 00:21:42,125 about everything, i-including our own evolution. 391 00:21:42,208 --> 00:21:45,500 These creatures could be closely related to us. 392 00:21:45,625 --> 00:21:49,000 This could be a branch of our own ancestral tree. 393 00:21:51,125 --> 00:21:57,292 SHATNER: Is it possible that the yowie, Bigfoot and the Yeti are real, 394 00:21:57,375 --> 00:22:00,583 as the countless sightings around the world suggest? 395 00:22:00,708 --> 00:22:05,875 And if so, are these creatures part of a lost branch 396 00:22:06,042 --> 00:22:07,833 of the human family tree? 397 00:22:07,958 --> 00:22:11,542 Perhaps the answer can be found by examining a creature 398 00:22:11,667 --> 00:22:14,500 that some believe left behind 399 00:22:14,583 --> 00:22:18,542 physical evidence of its existence 400 00:22:18,667 --> 00:22:21,917 high in the Himalayan mountains. 401 00:22:28,542 --> 00:22:32,333 From their Makalu base camp, located roughly 12 miles 402 00:22:32,458 --> 00:22:34,208 southeast of Mount Everest, 403 00:22:34,333 --> 00:22:36,833 the mountain expedition team of the Indian Army 404 00:22:36,958 --> 00:22:43,500 releases a photo of an unusually large set of footprints. 405 00:22:43,625 --> 00:22:46,292 COLLINS: An expedition from the Indian Army 406 00:22:46,375 --> 00:22:49,833 noticed very strange tracks in the snow. 407 00:22:49,958 --> 00:22:54,292 And when they looked at them, they realized that each one 408 00:22:54,375 --> 00:22:59,958 was 32 inches in length and 15 inches in width. 409 00:23:00,042 --> 00:23:03,625 And they came to the conclusion 410 00:23:03,708 --> 00:23:08,750 that they possibly belonged to the legendary Yeti. 411 00:23:08,875 --> 00:23:13,875 And we know it in the West as the Abominable Snowman. 412 00:23:16,000 --> 00:23:17,667 VIEIRA: The Indian Army 413 00:23:17,792 --> 00:23:21,750 are not prone to throw out such sensationalistic material. 414 00:23:21,875 --> 00:23:24,042 So that caught people, a lot of people, off guard. 415 00:23:25,417 --> 00:23:27,333 And you look at these prints 416 00:23:27,458 --> 00:23:30,708 and you start to ask the question, 417 00:23:30,875 --> 00:23:33,375 "How big a creature would create them?" 418 00:23:35,875 --> 00:23:37,458 SHATNER: Curiously, this isn't the first time 419 00:23:37,583 --> 00:23:40,042 that massive, bipedal footprints have been found 420 00:23:40,167 --> 00:23:42,667 in the vicinity of Mount Everest. 421 00:23:44,625 --> 00:23:48,333 In 1951, British mountaineer Eric Shipton captured a photo 422 00:23:48,417 --> 00:23:50,833 of what appeared to be a giant footprint 423 00:23:50,917 --> 00:23:55,500 with an ape-like thumb instead of a big toe. 424 00:23:55,667 --> 00:23:57,458 BLACKBURN: One thing that supports the credibility 425 00:23:57,583 --> 00:24:00,208 of all these sightings is that so many people 426 00:24:00,375 --> 00:24:02,083 have described the same thing. 427 00:24:04,292 --> 00:24:06,250 There has been numerous footprints 428 00:24:06,375 --> 00:24:10,042 that have been cast and observed and photographed over the years. 429 00:24:11,417 --> 00:24:13,333 And this just corroborates 430 00:24:13,458 --> 00:24:16,167 the different witness sightings to suggest 431 00:24:16,333 --> 00:24:18,667 that something is still out there. 432 00:24:20,625 --> 00:24:24,375 The idea that massive creatures like the Yeti 433 00:24:24,542 --> 00:24:28,667 are living in the wild might sound far-fetched to some, 434 00:24:28,792 --> 00:24:30,500 but there have been many similar accounts 435 00:24:30,625 --> 00:24:34,292 of strange, bipedal animals throughout history. 436 00:24:34,375 --> 00:24:36,917 For instance, there's a particular species 437 00:24:37,042 --> 00:24:39,917 that was believed to inhabit North America, 438 00:24:40,042 --> 00:24:43,958 and would only come out at night. 439 00:24:51,625 --> 00:24:53,458 SHATNER: Local farmer Felix Axley is planting 440 00:24:53,542 --> 00:24:55,208 his first crops of the growing season 441 00:24:55,333 --> 00:24:59,542 when he feels his plow catch on something beneath the soil. 442 00:24:59,667 --> 00:25:01,750 He digs beneath the dirt 443 00:25:01,875 --> 00:25:03,750 to find the source of the impediment 444 00:25:03,875 --> 00:25:08,292 and pulls out a strange carved statue 445 00:25:08,375 --> 00:25:10,125 of two creatures that appear to be human 446 00:25:10,250 --> 00:25:14,708 but have short bodies and large, round heads. 447 00:25:14,833 --> 00:25:18,958 The face, they almost, uh, look flat, 448 00:25:19,083 --> 00:25:21,458 you know, and, uh, 449 00:25:21,583 --> 00:25:24,000 and they showed their eyes as very prominent. 450 00:25:25,542 --> 00:25:27,083 When Felix actually dug it up, 451 00:25:27,208 --> 00:25:30,250 he probably didn't know what he was looking at, 452 00:25:30,375 --> 00:25:34,083 so he put them on a sled and drug it 453 00:25:34,208 --> 00:25:39,458 back up to his farmstead and leaned it against the well, 454 00:25:39,542 --> 00:25:41,500 and it stayed there for years and years. 455 00:25:43,042 --> 00:25:45,167 SHATNER: The odd statue remained a local curiosity 456 00:25:45,250 --> 00:25:47,625 for more than a century, but today, 457 00:25:47,708 --> 00:25:51,333 it is kept at the Cherokee County Historical Museum 458 00:25:51,458 --> 00:25:55,875 because experts have determined that the carving depicts members 459 00:25:56,000 --> 00:25:59,000 of a legendary civilization who the Cherokee referred to 460 00:25:59,125 --> 00:26:03,042 as "the moon-eyed people." 461 00:26:03,167 --> 00:26:04,792 VIEIRA: In 1797, 462 00:26:04,875 --> 00:26:07,542 Benjamin Smith Barton came out with a book 463 00:26:07,667 --> 00:26:10,750 and he cited a Revolutionary War veteran 464 00:26:10,875 --> 00:26:13,792 who was an interface between the government 465 00:26:13,917 --> 00:26:17,625 and the Cherokee people in Georgia, who told him 466 00:26:17,750 --> 00:26:19,792 about the legend of the moon-eyed people. 467 00:26:19,875 --> 00:26:23,875 The legend is that they were people with huge eyes 468 00:26:24,000 --> 00:26:28,583 who could see at night and not so well during the day. 469 00:26:28,708 --> 00:26:33,667 The Cherokee of the Appalachia of North America 470 00:26:33,792 --> 00:26:37,583 entered this region around 1,000 years ago. 471 00:26:37,708 --> 00:26:42,000 And when they got there, it was already occupied 472 00:26:42,167 --> 00:26:44,583 by a type of population 473 00:26:44,708 --> 00:26:48,417 they refer to as the moon-eyed people. 474 00:26:48,542 --> 00:26:51,000 And it was said that they had existed 475 00:26:51,167 --> 00:26:53,083 for many tens of thousands of years. 476 00:26:54,833 --> 00:26:56,667 JOHN STAMEY: The moon-eyed people have been described 477 00:26:56,833 --> 00:26:59,542 as being about three, three and a half feet tall, 478 00:26:59,708 --> 00:27:04,167 and having larger heads proportionally than we do. 479 00:27:04,292 --> 00:27:08,208 They've also got pale blue eyes and pale skin. 480 00:27:08,333 --> 00:27:12,208 Which also means that direct sunlight is not good for them, 481 00:27:12,375 --> 00:27:14,875 so they are primarily nocturnal. 482 00:27:16,542 --> 00:27:17,750 BILLY PALMER: The moon-eyed people 483 00:27:17,875 --> 00:27:21,458 lived on the eastern bank of the Valley River. 484 00:27:21,583 --> 00:27:23,208 And then the Cherokees, 485 00:27:23,333 --> 00:27:26,833 they lived between the Hiwassee and Valley River. 486 00:27:26,958 --> 00:27:29,625 The Cherokees lived with the moon-eyed people 487 00:27:29,708 --> 00:27:31,167 in harmony for a while, 488 00:27:31,292 --> 00:27:33,750 but then they eventually 489 00:27:33,875 --> 00:27:36,292 got in arguments for property reasons. 490 00:27:37,250 --> 00:27:39,333 And so, the moon-eyed people 491 00:27:39,417 --> 00:27:41,750 were displaced by the Cherokees. 492 00:27:43,458 --> 00:27:44,833 SHATNER: According to legend, 493 00:27:45,000 --> 00:27:47,583 after being driven westward by the Cherokee, 494 00:27:47,708 --> 00:27:50,292 the moon-eyed people disappeared... 495 00:27:51,583 --> 00:27:54,083 ...and were never seen again. 496 00:27:55,167 --> 00:27:58,958 Was there actually a primitive society of pale, 497 00:27:59,083 --> 00:28:01,292 human-like beings with enormous eyes 498 00:28:01,417 --> 00:28:02,667 that lived in North America? 499 00:28:02,833 --> 00:28:06,167 Many experts believe it's possible, 500 00:28:06,292 --> 00:28:09,125 because the Cherokee aren't the only Native Americans 501 00:28:09,208 --> 00:28:12,458 whose legends speak of the moon-eyed people. 502 00:28:12,542 --> 00:28:17,333 VIEIRA: What's interesting is that Lakota, Sioux, 503 00:28:17,458 --> 00:28:22,125 so many tribes have legends of short people with huge eyes. 504 00:28:22,250 --> 00:28:25,083 It's been said that even Lewis and Clark 505 00:28:25,208 --> 00:28:27,583 met with Native tribes in South Dakota, 506 00:28:27,708 --> 00:28:30,500 and were told by the Native people there 507 00:28:30,625 --> 00:28:32,958 that these little people were malevolent 508 00:28:33,042 --> 00:28:34,667 and had poison arrows and actually killed 509 00:28:34,792 --> 00:28:36,792 some of their members. 510 00:28:36,875 --> 00:28:38,750 And we're talking about fierce warriors, 511 00:28:38,875 --> 00:28:40,958 not people prone to superstition. 512 00:28:42,542 --> 00:28:43,917 THOMPSON: One of the very interesting aspects 513 00:28:44,042 --> 00:28:48,583 is trying to overlay these sort of characters 514 00:28:48,708 --> 00:28:51,375 with what we now have coming from archeology. 515 00:28:51,500 --> 00:28:53,333 For example, we know that there were a lot of hominids 516 00:28:53,417 --> 00:28:54,875 running around the Earth. 517 00:28:55,042 --> 00:28:57,000 It's not out of the realm of possibility 518 00:28:57,167 --> 00:28:59,458 that some of these stories we have 519 00:28:59,583 --> 00:29:03,167 refer to long-held folklore notions 520 00:29:03,292 --> 00:29:06,458 of when the world was a much more diverse place. 521 00:29:06,542 --> 00:29:09,750 SHATNER: Could there have been entire civilizations 522 00:29:09,875 --> 00:29:12,417 belonging to other branches of the human family tree 523 00:29:12,542 --> 00:29:15,333 that disappeared from history? 524 00:29:15,458 --> 00:29:17,250 It's a fascinating notion. 525 00:29:17,375 --> 00:29:20,958 But in the case of the moon-eyed people, 526 00:29:21,083 --> 00:29:24,333 many researchers believe that actual physical evidence 527 00:29:24,500 --> 00:29:28,000 of their society still exists. 528 00:29:33,833 --> 00:29:37,208 Standing atop the peak of this worn mountain 529 00:29:37,375 --> 00:29:39,375 at the southern end of the Appalachians 530 00:29:39,500 --> 00:29:41,917 is a jagged rock wall 531 00:29:42,042 --> 00:29:44,917 that is 855 feet long. 532 00:29:45,042 --> 00:29:47,500 COLLINS: The moon-eyed people, 533 00:29:47,667 --> 00:29:50,083 they are accredited with the creation 534 00:29:50,208 --> 00:29:55,292 of incredible structures on the side of mountains and hills 535 00:29:55,375 --> 00:29:57,000 like on Fort Mountain. 536 00:29:57,125 --> 00:30:00,667 In fact, there's even a sign on Fort Mountain 537 00:30:00,833 --> 00:30:04,333 saying that these structures were created 538 00:30:04,458 --> 00:30:05,958 by the moon-eyed people. 539 00:30:07,000 --> 00:30:08,417 STAMEY: We're pretty certain 540 00:30:08,542 --> 00:30:10,750 it was not built by the Cherokees, 541 00:30:10,875 --> 00:30:13,667 because the Cherokee did not use rock 542 00:30:13,750 --> 00:30:15,958 in their construction, they used a concoction 543 00:30:16,042 --> 00:30:18,500 called wattle and daub... 544 00:30:19,833 --> 00:30:23,667 ...and that was straw, clay and mud. 545 00:30:23,833 --> 00:30:26,417 Since it's not built by the Cherokees, 546 00:30:26,542 --> 00:30:29,458 it might very well have been built by the moon-eyed people. 547 00:30:31,625 --> 00:30:35,125 It might seem unbelievable that there was a race 548 00:30:35,250 --> 00:30:39,583 of pale humanoids with enormous, moon-shaped eyes 549 00:30:39,708 --> 00:30:41,792 that once inhabited North America, 550 00:30:41,917 --> 00:30:44,167 but there have been reports 551 00:30:44,292 --> 00:30:47,000 of an even more incredible creature 552 00:30:47,167 --> 00:30:49,917 that dwells in the swamps of South Carolina. 553 00:30:50,042 --> 00:30:53,542 A bizarre beast that is said to be part man... 554 00:30:54,708 --> 00:30:56,083 ...and part reptile. 555 00:31:04,708 --> 00:31:06,667 SHATNER: 17-year-old Christopher Davis 556 00:31:06,750 --> 00:31:08,167 stops to change a flat tire 557 00:31:08,292 --> 00:31:11,833 deep in the back roads of Scape Ore Swamp. 558 00:31:11,958 --> 00:31:17,292 And he quickly senses that he is not alone. 559 00:31:20,125 --> 00:31:22,458 About the time he's putting the jack and the flat tire 560 00:31:22,583 --> 00:31:24,292 into the trunk of his car, 561 00:31:24,417 --> 00:31:26,167 he looks up and he sees 562 00:31:26,292 --> 00:31:28,833 something coming at him in the moonlight. 563 00:31:30,125 --> 00:31:32,250 The closer this thing got, 564 00:31:32,375 --> 00:31:36,125 the more he knew this wasn't a person. 565 00:31:36,208 --> 00:31:41,750 He looked up and he saw a greenish-looking figure, 566 00:31:41,875 --> 00:31:44,708 maybe about seven to eight foot tall, 567 00:31:44,875 --> 00:31:47,833 and arms that draped down to the side 568 00:31:47,958 --> 00:31:51,083 with three claws on each hand. 569 00:31:52,833 --> 00:31:54,000 SHATNER: Sensing he could be in danger, 570 00:31:54,125 --> 00:31:56,000 Christopher bolts into the car 571 00:31:56,125 --> 00:31:57,750 and drives away as fast as he can. 572 00:31:57,875 --> 00:31:59,708 (engine starts) 573 00:31:59,833 --> 00:32:00,708 BLACKBURN: Christopher looked 574 00:32:00,833 --> 00:32:02,000 in his rearview mirror 575 00:32:02,125 --> 00:32:04,000 and could see this thing pursuing him. 576 00:32:04,083 --> 00:32:08,000 He was completely frightened, utterly overwhelmed 577 00:32:08,125 --> 00:32:10,167 by what he saw coming at him. 578 00:32:10,292 --> 00:32:15,208 Eventually, it disappeared into the darkness. 579 00:32:15,333 --> 00:32:19,125 SHATNER: Christopher got home safe and sound. 580 00:32:19,208 --> 00:32:22,875 But his terrifying story quickly spread through the media. 581 00:32:23,000 --> 00:32:25,667 Newspapers and television stations 582 00:32:25,750 --> 00:32:29,000 jumped on the bizarre encounter. 583 00:32:29,083 --> 00:32:31,875 ANCHOR: Deep in the Scape Ore Swamp of South Carolina, 584 00:32:32,042 --> 00:32:33,750 there reportedly lives a creature 585 00:32:33,875 --> 00:32:36,333 that is part man and part beast. 586 00:32:36,417 --> 00:32:38,542 A creature that 17-year-old Christopher Davis claims 587 00:32:38,667 --> 00:32:41,917 attacked his car late one night on this lonely country road. 588 00:32:42,042 --> 00:32:44,583 Seven feet tall. 589 00:32:44,708 --> 00:32:48,292 Long arms, red eyes. 590 00:32:48,375 --> 00:32:51,417 STAMEY: There was a media frenzy once the story got out. 591 00:32:51,542 --> 00:32:54,875 There were stories in newspapers in Korea 592 00:32:55,000 --> 00:32:56,208 about the Lizard Man. 593 00:32:56,375 --> 00:32:59,333 And that's just a tribute to the viralness 594 00:32:59,417 --> 00:33:00,833 of the Lizard Man. 595 00:33:00,958 --> 00:33:03,833 SHATNER: During the media frenzy, 596 00:33:03,958 --> 00:33:06,667 dozens of other eyewitnesses began contacting 597 00:33:06,792 --> 00:33:08,917 the Lee County Sheriff's Office. 598 00:33:09,042 --> 00:33:11,167 They all claimed to have had similar encounters 599 00:33:11,250 --> 00:33:14,417 with a strange, three-fingered creature 600 00:33:14,542 --> 00:33:19,167 that appeared to be part man and part reptile. 601 00:33:19,292 --> 00:33:22,000 But rather than dismiss such reports, 602 00:33:22,125 --> 00:33:26,083 law enforcement took them quite seriously. 603 00:33:26,208 --> 00:33:29,042 They had the witnesses come in, they interviewed them-- 604 00:33:29,208 --> 00:33:33,417 in some cases, gave them polygraph tests. 605 00:33:33,542 --> 00:33:35,500 And all of the witnesses that reported sightings 606 00:33:35,667 --> 00:33:37,750 of the Lizard Man were credible. 607 00:33:37,875 --> 00:33:42,125 Could there really be a reptile species 608 00:33:42,208 --> 00:33:47,458 that evolved to walk upright like humans? 609 00:33:47,583 --> 00:33:50,208 It may sound far-fetched, 610 00:33:50,375 --> 00:33:53,250 but many researchers believe it's possible. 611 00:33:54,417 --> 00:33:56,000 And as evidence, 612 00:33:56,167 --> 00:33:58,458 they point to a creature in the Bible 613 00:33:58,542 --> 00:34:04,917 that exhibited characteristics of both man and reptile. 614 00:34:05,042 --> 00:34:07,958 FISHER: The serpent in the Garden of Eden 615 00:34:08,083 --> 00:34:12,125 is not like normal serpents in that it can speak. 616 00:34:13,708 --> 00:34:18,750 The Hebrew Bible describes how the serpent tricked Eve, 617 00:34:18,875 --> 00:34:21,333 and as part of the punishment, 618 00:34:21,500 --> 00:34:25,708 he is cursed and told that it's going to go on its belly 619 00:34:25,833 --> 00:34:30,917 in the dust, which implies it had some prior, uh, 620 00:34:31,042 --> 00:34:33,583 mode of locomotion that was different. 621 00:34:33,708 --> 00:34:36,292 So, it may have been a walking serpent. 622 00:34:36,375 --> 00:34:39,167 Some legends that develop-- 623 00:34:39,292 --> 00:34:42,167 you see this in some medieval artwork-- 624 00:34:42,292 --> 00:34:46,375 the serpent was understood to have had legs. 625 00:34:46,500 --> 00:34:52,167 Some of the Jewish legends about Eve and the serpent 626 00:34:52,292 --> 00:34:56,042 imply that it may have also had some kind of arms or hands 627 00:34:56,167 --> 00:34:59,625 that could, uh, push her to touch the tree, 628 00:34:59,708 --> 00:35:01,833 or bringing fruit to her. 629 00:35:02,000 --> 00:35:07,042 So the idea of this serpent-human hybrid 630 00:35:07,167 --> 00:35:08,667 is a very ancient one. 631 00:35:08,792 --> 00:35:11,083 SHATNER: The notion that an ancient species 632 00:35:11,208 --> 00:35:13,500 of reptiles with human characteristics 633 00:35:13,583 --> 00:35:17,625 may have evolved alongside people is intriguing. 634 00:35:19,125 --> 00:35:21,167 But could there be scientific evidence 635 00:35:21,292 --> 00:35:23,708 to suggest that such beings exist? 636 00:35:28,750 --> 00:35:31,708 Neuroscientists at the Max Planck Institute 637 00:35:31,833 --> 00:35:33,417 publish a landmark study. 638 00:35:33,542 --> 00:35:37,917 They claim to have discovered an evolutionary link 639 00:35:38,042 --> 00:35:40,250 between the development of the human brain 640 00:35:40,375 --> 00:35:45,333 and early reptiles that lived in the distant past. 641 00:35:45,417 --> 00:35:48,000 We know that humans are mammals, and reptiles are reptiles. 642 00:35:48,125 --> 00:35:50,292 But at a certain point, we had a common ancestor: 643 00:35:50,375 --> 00:35:54,208 cynodonts, which lived 235 million years ago. 644 00:35:54,375 --> 00:35:56,000 They're these small-bodied creatures 645 00:35:56,083 --> 00:35:58,125 that had rodent-like attributes, 646 00:35:58,208 --> 00:36:00,875 even though they were still reptiles. 647 00:36:01,042 --> 00:36:02,583 KIRSTEN FISHER: In evolutionary terms, 648 00:36:02,708 --> 00:36:06,000 we share, uh, many features with our reptile relatives. 649 00:36:06,083 --> 00:36:09,292 Things like the amniotic sac, 650 00:36:09,375 --> 00:36:13,708 four limbs, elements of our neurological system, 651 00:36:13,833 --> 00:36:18,250 like the basal part of the brain. Also, our cerebellum. 652 00:36:19,500 --> 00:36:22,083 So we can look at any familiar reptile, 653 00:36:22,208 --> 00:36:25,000 whether it's a crocodile or a turtle 654 00:36:25,125 --> 00:36:28,250 and know that it is, in fact, your relative, 655 00:36:28,375 --> 00:36:30,542 albeit a very distant relative. 656 00:36:30,708 --> 00:36:33,792 SHATNER: Could it be that many of the evolutionary traits 657 00:36:33,875 --> 00:36:38,708 found in modern humans didn't arise from ancient primates 658 00:36:38,875 --> 00:36:44,500 but rather from a reptilian ancestor millions of years ago? 659 00:36:44,625 --> 00:36:47,667 And if so, is it possible that there are bizarre 660 00:36:47,750 --> 00:36:52,875 human and reptile hybrids that are still alive today? 661 00:36:53,000 --> 00:36:54,542 STAMEY: There have been a number of other sightings 662 00:36:54,667 --> 00:36:57,458 of the Lizard Man outside of Lee County 663 00:36:57,542 --> 00:36:59,792 and Sumter County in South Carolina. 664 00:36:59,875 --> 00:37:03,125 There's some in Europe, there's some in South Africa. 665 00:37:03,250 --> 00:37:05,792 Every one of them was about six to eight feet tall 666 00:37:05,875 --> 00:37:07,750 with red eyes. 667 00:37:07,875 --> 00:37:10,375 It always had red eyes. 668 00:37:10,500 --> 00:37:13,542 That is one commonality that you can't get over. 669 00:37:13,667 --> 00:37:17,708 And so, it is certainly possible that the Lizard Man is real. 670 00:37:19,708 --> 00:37:23,167 If it was ever proven that a race of reptilians 671 00:37:23,250 --> 00:37:24,625 existed on Earth... 672 00:37:24,750 --> 00:37:27,500 well, that would challenge everything 673 00:37:27,583 --> 00:37:29,833 we currently think about evolution. 674 00:37:29,958 --> 00:37:35,875 Which could also be the case with some ancient skeletons 675 00:37:36,000 --> 00:37:37,500 that were recently found in Africa. 676 00:37:37,625 --> 00:37:41,083 Skeletons that are shedding new light 677 00:37:41,208 --> 00:37:44,333 on the origins of mankind. 678 00:37:48,000 --> 00:37:50,042 SHATNER: The Bloubank River valley, South Africa. 679 00:37:50,167 --> 00:37:52,583 September 13, 2013. 680 00:37:52,708 --> 00:37:57,083 Two amateur spelunkers enter the Rising Star Cave system 681 00:37:57,208 --> 00:37:59,708 and explore its twisting depths. 682 00:38:01,542 --> 00:38:05,458 Inside, they make an unexpected discovery. 683 00:38:05,542 --> 00:38:08,125 The cave is littered... 684 00:38:08,250 --> 00:38:11,625 with the bones of 15 people. 685 00:38:13,208 --> 00:38:14,375 Carbon dating reveals the bones 686 00:38:14,500 --> 00:38:17,833 are more than 300,000 years old. 687 00:38:19,000 --> 00:38:22,208 But even more astonishing, scientists determine the bones 688 00:38:22,375 --> 00:38:26,167 belong to a previously unknown species of hominid. 689 00:38:26,250 --> 00:38:30,833 They name it Homo naledi. 690 00:38:31,000 --> 00:38:32,792 So, what's really remarkable about this discovery 691 00:38:32,917 --> 00:38:36,292 of Homo naledi was its very small cranial capacity. 692 00:38:36,375 --> 00:38:38,625 Homo naledi has a cranial capacity around 693 00:38:38,750 --> 00:38:41,667 610 cubic centimeters, and anatomically modern humans 694 00:38:41,750 --> 00:38:44,292 have roughly 1,270 cubic centimeters. 695 00:38:44,417 --> 00:38:46,333 So, we're seeing a huge difference 696 00:38:46,500 --> 00:38:50,125 between these two species living at the same exact time. 697 00:38:50,250 --> 00:38:52,667 And that says a lot about human evolution, 698 00:38:52,792 --> 00:38:55,000 that it's not necessarily having a giant brain 699 00:38:55,083 --> 00:38:57,167 that's gonna get you far in life. 700 00:38:57,250 --> 00:39:00,792 TOCHERI: The discovery of Homo naledi opened up a lot of questions 701 00:39:00,875 --> 00:39:03,417 about how we thought about the evolution 702 00:39:03,542 --> 00:39:05,833 of our species in Africa, 703 00:39:06,000 --> 00:39:09,500 where we find another species of human overlapping with us, 704 00:39:09,625 --> 00:39:12,500 that shares some aspects of their anatomy with us, 705 00:39:12,583 --> 00:39:15,125 but other aspects look very, very different, 706 00:39:15,250 --> 00:39:17,333 showing another direction that evolution took 707 00:39:17,458 --> 00:39:19,583 in their particular lineage. 708 00:39:20,917 --> 00:39:22,792 SHATNER: Ever since Charles Darwin published 709 00:39:22,917 --> 00:39:24,333 The Origin of Species, 710 00:39:24,458 --> 00:39:26,083 we've assumed that evolution favors species 711 00:39:26,208 --> 00:39:29,917 that have the most desirable traits, such as intelligence. 712 00:39:30,042 --> 00:39:33,208 But some researchers believe the discovery 713 00:39:33,333 --> 00:39:35,917 of Homo naledi's smaller brain size 714 00:39:36,042 --> 00:39:40,167 raises the possibility that survival of the fittest 715 00:39:40,333 --> 00:39:43,833 may not always be the case. 716 00:39:45,208 --> 00:39:46,708 REAGAN: Fittest doesn't necessarily mean 717 00:39:46,833 --> 00:39:49,500 you can run a marathon, you can scale tall buildings. 718 00:39:49,625 --> 00:39:52,833 It doesn't even mean you can do calculus or win a Nobel Prize. 719 00:39:53,000 --> 00:39:56,083 It's whoever can survive and hack it in their environment. 720 00:39:56,208 --> 00:39:59,958 SHATNER: If it's true that being the strongest, the fastest 721 00:40:00,083 --> 00:40:02,167 or the smartest isn't required 722 00:40:02,292 --> 00:40:05,833 to ensure the survival of a species, 723 00:40:05,958 --> 00:40:08,292 could our quest to unravel mankind's origins 724 00:40:08,417 --> 00:40:11,708 have been misguided all this time? 725 00:40:11,833 --> 00:40:15,875 And if so, is it possible that we'll ever truly 726 00:40:16,042 --> 00:40:20,667 be able to answer who we are and where we come from? 727 00:40:20,750 --> 00:40:25,542 FINLAYSON: It's clear that our story is being rewritten all the time. 728 00:40:25,708 --> 00:40:28,417 We know the basics, and we know that 729 00:40:28,542 --> 00:40:30,250 we're part of an evolving lineage, 730 00:40:30,375 --> 00:40:32,375 but I'm sure more will be found 731 00:40:32,500 --> 00:40:35,667 in terms of fossils but also in terms of the DNA, 732 00:40:35,833 --> 00:40:37,000 which has given us a lot of information 733 00:40:37,125 --> 00:40:38,875 about makes us human. 734 00:40:39,042 --> 00:40:42,375 TOCHERI: Human diversity was just so much greater 735 00:40:42,500 --> 00:40:44,833 in the recent past than it is today. 736 00:40:44,958 --> 00:40:48,583 Over the past hundred years, we've gone from having a handful 737 00:40:48,708 --> 00:40:52,583 of species, you know, separated by vast periods of time 738 00:40:52,708 --> 00:40:56,833 to a very bushy, bushy tree, family tree 739 00:40:56,958 --> 00:41:00,917 full of different examples of how to be human 740 00:41:01,042 --> 00:41:03,708 at different points in time over the past six million years. 741 00:41:03,875 --> 00:41:04,958 It's incredible. 742 00:41:06,583 --> 00:41:07,917 REAGAN: We talk about this missing link, 743 00:41:08,042 --> 00:41:09,833 but we're discovering more and more species 744 00:41:09,958 --> 00:41:13,333 that fit outside of what we had expected. 745 00:41:13,458 --> 00:41:17,792 So it's making us rethink the way humans evolved. 746 00:41:17,875 --> 00:41:20,667 And I think we're gonna continue seeing these discoveries, 747 00:41:20,792 --> 00:41:24,250 to hopefully find more pieces of this puzzle that will 748 00:41:24,375 --> 00:41:25,917 help us understand where we came from. 749 00:41:26,042 --> 00:41:30,333 And hopefully better inform us how to keep moving forward. 750 00:41:30,500 --> 00:41:34,000 Will we ever find the elusive missing link 751 00:41:34,167 --> 00:41:36,542 that explains mankind's origins? 752 00:41:36,708 --> 00:41:41,750 Each skull or skeleton that we uncover certainly brings us 753 00:41:41,875 --> 00:41:45,542 one step closer to finding the answer. 754 00:41:45,667 --> 00:41:48,125 But then again, perhaps we shouldn't assume 755 00:41:48,250 --> 00:41:51,625 that the purpose of evolution is all about us. 756 00:41:51,750 --> 00:41:54,208 Maybe human beings are just one piece 757 00:41:54,375 --> 00:41:58,000 of a much larger mystery that, at least for the time being, 758 00:41:58,167 --> 00:42:01,333 remains unexplained. 759 00:42:01,458 --> 00:42:03,500 CAPTIONING PROVIDED BY A+E NETWORKS