1 00:00:13,240 --> 00:00:17,320 For those who don't know me, I'm Graham Hancock. 2 00:00:18,680 --> 00:00:24,960 I've been exploring the possibility of a lost civilization in prehistory 3 00:00:25,040 --> 00:00:26,760 for more than 30 years. 4 00:00:29,000 --> 00:00:32,280 Archaeology claims if there were such a thing as a lost civilization, 5 00:00:33,720 --> 00:00:36,240 they would have found it already. 6 00:00:38,600 --> 00:00:40,440 Well, I profoundly disagree with that. 7 00:00:42,360 --> 00:00:44,160 And now, my quest continues… 8 00:00:48,880 --> 00:00:52,880 …in a part of the world often overlooked by historians of humanity's origins… 9 00:00:55,640 --> 00:01:00,800 The oldest dates that we got were about 13,200 before present. 10 00:01:01,960 --> 00:01:06,000 …exploring some of the world's most intriguing ancient wonders. 11 00:01:06,880 --> 00:01:10,160 There's numerology. There's mathematics. There's astronomy. 12 00:01:11,120 --> 00:01:14,600 This could be considered a lost technology. 13 00:01:15,200 --> 00:01:16,880 And making new discoveries. 14 00:01:18,200 --> 00:01:19,200 Wow. 15 00:01:23,400 --> 00:01:26,480 It's impossible. It's impossible. 16 00:01:27,720 --> 00:01:32,680 I mean, as a kid, I always thought the timeline was off. 17 00:01:33,360 --> 00:01:36,400 All with a radical new proposition in mind. 18 00:01:38,040 --> 00:01:40,880 Could the key to discovering a lost civilization 19 00:01:40,960 --> 00:01:42,560 of the Ice Age lie here, 20 00:01:44,040 --> 00:01:45,160 in the Americas? 21 00:02:06,520 --> 00:02:09,000 {\an8}- 22 00:02:20,080 --> 00:02:22,360 The quest for our origins 23 00:02:23,680 --> 00:02:26,400 and the quest for the origins of civilization, 24 00:02:26,480 --> 00:02:30,600 are fundamental to what it is, to being human. 25 00:02:32,760 --> 00:02:34,840 But I think it's part of the human nature. 26 00:02:35,880 --> 00:02:38,760 If we're convinced that something doesn't exist, 27 00:02:39,640 --> 00:02:40,760 we don't look for it. 28 00:02:48,320 --> 00:02:51,040 My search for those origins has led me here, 29 00:02:52,320 --> 00:02:55,080 to one of the most striking places in North America. 30 00:02:56,960 --> 00:02:58,200 White Sands. 31 00:03:05,360 --> 00:03:09,120 This is a land of austere beauty and strangeness 32 00:03:09,200 --> 00:03:12,040 that's been hiding a secret for thousands of years. 33 00:03:14,360 --> 00:03:16,520 A secret now unveiled 34 00:03:16,600 --> 00:03:19,680 that's forcing a rewrite of the prehistory of the Americas. 35 00:03:21,680 --> 00:03:25,760 Until the 1990s, we were taught that deep in the Ice Age, 36 00:03:25,840 --> 00:03:30,560 humans migrated from North Asia to Alaska, across the Bering land bridge, 37 00:03:31,480 --> 00:03:34,200 then, around 13,500 years ago, 38 00:03:35,000 --> 00:03:39,760 walked south through an ice-free corridor, before spreading across the Americas. 39 00:03:42,040 --> 00:03:45,120 A scenario held so firmly for so long 40 00:03:45,720 --> 00:03:50,400 that few archaeologists went looking for traces of any earlier human migration. 41 00:03:53,880 --> 00:03:56,560 For a very long time, there's been this conviction 42 00:03:56,640 --> 00:03:59,000 that evidence would not be found of a human presence 43 00:03:59,080 --> 00:04:01,440 older than 13,500 years ago. 44 00:04:03,160 --> 00:04:07,480 Turns out, that idea was wrong. Very wrong. 45 00:04:10,320 --> 00:04:13,840 White Sands National Park's resource manager, David Bustos, 46 00:04:13,920 --> 00:04:16,320 {\an8}began working here in 2005, 47 00:04:18,160 --> 00:04:20,400 hoping to share with others his passion 48 00:04:20,480 --> 00:04:22,520 for this pristine wilderness and its wildlife. 49 00:04:24,840 --> 00:04:28,160 But he soon found himself on the trail of something else, 50 00:04:29,600 --> 00:04:31,880 something that seemed crazy at first. 51 00:04:33,760 --> 00:04:39,400 I think about 2006, I heard a story about footprints of a Bigfoot. 52 00:04:40,200 --> 00:04:44,720 And there was a government trapper that found these amazing prints. 53 00:04:44,800 --> 00:04:48,400 He described them being 22 inches across and eight inches wide. 54 00:04:48,480 --> 00:04:50,600 - Yeah. - What could that be? Must be a Bigfoot. 55 00:04:50,680 --> 00:04:54,200 And I think lot of people gave him a hard time. There's no Bigfoot. 56 00:04:54,280 --> 00:04:56,600 But I was thinking, "I've seen these." 57 00:04:56,680 --> 00:04:57,720 Yeah. 58 00:04:57,800 --> 00:05:01,600 And so we went out, and when we brushed out the footprints, 59 00:05:01,680 --> 00:05:03,960 you could see they had incredible claw marks. 60 00:05:05,160 --> 00:05:07,400 Obviously, this was no Bigfoot. 61 00:05:09,720 --> 00:05:12,440 He did find a big footprint of a giant ground sloth. 62 00:05:12,520 --> 00:05:14,800 - That's what they were. - Giant ground sloths. 63 00:05:16,760 --> 00:05:19,280 They knew the prints must be very old. 64 00:05:20,920 --> 00:05:25,640 Giant ground sloths went extinct around 11,500 years ago. 65 00:05:27,960 --> 00:05:33,040 Then David and his colleagues found even larger prints nearby from mammoths, 66 00:05:33,120 --> 00:05:34,400 also long extinct. 67 00:05:37,080 --> 00:05:41,520 Some of the gait and stride can be 13 feet long. Really incredible. 68 00:05:43,440 --> 00:05:46,680 Look a little bit further, you'll find the giant camel, American camel. 69 00:05:46,760 --> 00:05:49,280 - Yeah. - Sometimes you'll see dire wolves. 70 00:05:51,080 --> 00:05:53,200 All these tracks are from megafauna, 71 00:05:53,800 --> 00:05:57,880 giant mammals which suddenly vanished at the end of the last Ice Age. 72 00:06:00,520 --> 00:06:03,160 Many are little more than compacted sand, 73 00:06:03,240 --> 00:06:07,160 buried and protected by layers of sediment over thousands of years, 74 00:06:09,480 --> 00:06:12,360 until erosion brought them back to the surface. 75 00:06:15,160 --> 00:06:17,480 Among these ancient mammoth tracks, 76 00:06:17,560 --> 00:06:20,840 David also spotted another intriguing set of prints, 77 00:06:23,960 --> 00:06:26,840 and he and his colleagues decided to take a closer look. 78 00:06:29,880 --> 00:06:31,800 When we brushed out these other footprints, 79 00:06:31,880 --> 00:06:35,320 we've seen really nice, clear toe impressions in the heel. 80 00:06:37,600 --> 00:06:39,640 - Human footprints? - Human footprints. 81 00:06:39,720 --> 00:06:43,360 At the same age, it appeared to be, as the megafauna. 82 00:06:43,440 --> 00:06:44,720 It was really amazing. 83 00:06:44,800 --> 00:06:46,120 - Incredible. - Yes. 84 00:06:51,440 --> 00:06:54,160 These fossilized human footprints must have been made 85 00:06:54,240 --> 00:06:57,080 in the time of the mammoths and the giant sloths. 86 00:06:58,800 --> 00:07:01,920 At least 11,500 years ago. 87 00:07:03,840 --> 00:07:05,960 And there are thousands of them. 88 00:07:12,960 --> 00:07:18,120 There's something intimate and special about White Sands. It's not tools. 89 00:07:18,200 --> 00:07:23,160 It's not a broken femur from a prey animal that's been butchered. 90 00:07:23,240 --> 00:07:25,640 It's human footprints. It's us. 91 00:07:29,000 --> 00:07:32,920 We are seeing the human presence very intimately and very directly 92 00:07:33,000 --> 00:07:34,040 in those footprints. 93 00:07:38,920 --> 00:07:41,160 But when were they left here exactly? 94 00:07:43,920 --> 00:07:46,360 Just how old are these footprints? 95 00:07:49,160 --> 00:07:52,160 There's no technology that can date them directly. 96 00:07:53,760 --> 00:07:57,920 So the National Park Service teamed up with the US Geological Survey 97 00:07:58,000 --> 00:08:00,000 to search for more evidence. 98 00:08:05,160 --> 00:08:06,720 And they struck gold, 99 00:08:07,320 --> 00:08:12,160 finding layer upon layer of animal and human tracks going deep into the past. 100 00:08:16,320 --> 00:08:19,320 Buried among them were seeds from an aquatic grass… 101 00:08:21,240 --> 00:08:23,240 …seeds that could be carbon dated. 102 00:08:27,040 --> 00:08:29,600 And the results were astounding. 103 00:08:33,560 --> 00:08:36,680 We know that the footprints were here for thousands of years, 104 00:08:36,760 --> 00:08:41,680 at least from 23,000 years to 21,000 years. 105 00:08:41,760 --> 00:08:42,600 Wow. 106 00:08:48,800 --> 00:08:54,440 The discovery of human footprints at White Sands is a huge step forward 107 00:08:54,520 --> 00:08:57,400 in our understanding of the peopling of the Americas. 108 00:08:59,200 --> 00:09:02,720 {\an8}We're looking at absolutely incontrovertible evidence 109 00:09:02,800 --> 00:09:06,560 that humans were present in New Mexico deep in the Ice Age, 110 00:09:06,640 --> 00:09:09,880 as much as 23,000 years ago. 111 00:09:11,240 --> 00:09:15,120 It's proof that long before it was possible to spread south 112 00:09:15,200 --> 00:09:17,640 into the Americas through that ice-free corridor, 113 00:09:18,320 --> 00:09:20,760 humans were already here. 114 00:09:24,440 --> 00:09:28,400 This changes the history of the Americas, and it changes the history of the world. 115 00:09:32,800 --> 00:09:35,320 These are human beings just like us, 116 00:09:35,400 --> 00:09:39,080 but human beings concealed behind the veil of time. 117 00:09:39,160 --> 00:09:43,240 And our task now is to lift that veil back 118 00:09:43,320 --> 00:09:49,000 and re-establish that connection with our ancestors and the remote past. 119 00:09:54,680 --> 00:09:57,360 The footprints hold special meaning and significance 120 00:09:57,440 --> 00:10:00,120 for the Indigenous communities of this area. 121 00:10:03,120 --> 00:10:07,080 {\an8}Kim Pasqual-Charlie of the Pueblo of Acoma consulted with the team 122 00:10:07,160 --> 00:10:08,800 {\an8}on this groundbreaking discovery. 123 00:10:12,520 --> 00:10:16,160 Tell me about the relationship of the Acoma to the land. 124 00:10:16,240 --> 00:10:19,560 How long have your people been here? 125 00:10:19,640 --> 00:10:22,720 Are there myths and traditions about an origin story of your people? 126 00:10:22,800 --> 00:10:27,520 Yes. Our origin story started somewhere in the north area. 127 00:10:27,600 --> 00:10:30,360 And through our migration story that has been passed down 128 00:10:30,440 --> 00:10:32,200 from generation to generation, 129 00:10:32,280 --> 00:10:34,600 we settled here and there, coming down here. 130 00:10:34,680 --> 00:10:37,200 - And that's where my people stayed. - Yeah. 131 00:10:37,280 --> 00:10:39,920 We've been in the Southwest for a very long time. 132 00:10:40,000 --> 00:10:40,840 Yeah. 133 00:10:41,720 --> 00:10:43,240 To Kim and her people, 134 00:10:43,320 --> 00:10:46,440 these prints are far more than archaeological records. 135 00:10:48,040 --> 00:10:50,800 - Your ancestors left their footprints. - Mm-hmm. 136 00:10:50,880 --> 00:10:53,840 I understand you were involved in finding some of those footprints? 137 00:10:53,920 --> 00:10:55,520 Yes. There's no words to describe it. 138 00:10:58,560 --> 00:11:02,920 We've come to see where our ancestor once walked this earth. 139 00:11:09,080 --> 00:11:13,680 And to place my hands in the little footprints of children. 140 00:11:17,000 --> 00:11:20,360 - You know? And it gets very emotional. - Yeah. 141 00:11:20,440 --> 00:11:21,760 - You know? It's-- - Yeah. 142 00:11:22,360 --> 00:11:25,080 I'm sorry, Graham, but it just… 143 00:11:25,160 --> 00:11:26,960 There are times it makes you wanna cry. 144 00:11:27,040 --> 00:11:28,360 - Absolutely. - You know? 145 00:11:29,760 --> 00:11:32,080 But once the footprints are exposed, 146 00:11:32,160 --> 00:11:34,400 the same process of erosion that revealed them 147 00:11:34,480 --> 00:11:36,480 will slowly start to erase them. 148 00:11:38,920 --> 00:11:42,800 These footprints which testify to the ancient presence of your people 149 00:11:42,880 --> 00:11:44,000 are also fragile. 150 00:11:44,080 --> 00:11:45,440 - Right. - They could easily be lost. 151 00:11:46,040 --> 00:11:48,880 You know, maybe 50 years from now, 152 00:11:48,960 --> 00:11:52,200 the next generation won't be able to see the footprints. 153 00:11:52,280 --> 00:11:55,000 - Yeah. - But the stories will continue. 154 00:11:55,080 --> 00:11:56,720 Our stories will continue. 155 00:12:03,600 --> 00:12:06,040 But the barren landscape begs a question. 156 00:12:06,640 --> 00:12:10,080 Why would all these humans and animals have come here? 157 00:12:13,520 --> 00:12:17,000 Remember, North America was different during the Ice Age. 158 00:12:17,640 --> 00:12:20,880 The north half of the continent was smothered by ice. 159 00:12:22,840 --> 00:12:26,080 And this part of New Mexico was very different. 160 00:12:27,000 --> 00:12:27,960 At first glance, 161 00:12:28,040 --> 00:12:32,200 this vast, open desert with patches of brush and wind-sculpted dunes 162 00:12:32,280 --> 00:12:35,360 seems pitiless and otherworldly. 163 00:12:37,200 --> 00:12:40,720 But if we wind the clock back to the height of the Ice Age, 164 00:12:40,800 --> 00:12:42,920 conditions here were very different. 165 00:12:48,320 --> 00:12:53,160 The Tularosa Basin held a giant body of fresh water known as Lake Otero 166 00:12:55,120 --> 00:12:57,120 surrounded by vegetation. 167 00:12:58,440 --> 00:13:02,640 Ancient mammoths, ground sloths, and camels came to this watering hole 168 00:13:02,720 --> 00:13:04,720 to feast on the grasses and trees. 169 00:13:07,280 --> 00:13:09,880 And, as we now know, humans followed them. 170 00:13:15,280 --> 00:13:17,320 Establishing the age of the footprints 171 00:13:17,400 --> 00:13:19,560 was a complex scientific problem. 172 00:13:20,680 --> 00:13:25,120 David and a team of experts spent more than a decade building the evidence. 173 00:13:26,920 --> 00:13:31,520 But when, in 2021, they published their findings in the journal Science, 174 00:13:32,160 --> 00:13:34,160 not all reactions were favorable. 175 00:13:36,760 --> 00:13:39,240 I think with anything that's so unique and unusual, 176 00:13:39,320 --> 00:13:41,600 it takes a lot of science to be able to support it. 177 00:13:43,160 --> 00:13:45,840 The carbon dating of the seeds was challenged. 178 00:13:46,560 --> 00:13:51,000 But the team confirmed their results using other samples of pollen and sediment 179 00:13:51,080 --> 00:13:53,080 quieting their critics. 180 00:13:53,800 --> 00:13:57,960 Is there still controversy around the 23,000-year-old dates? 181 00:13:58,600 --> 00:14:01,720 I think until you have a time machine, there always will be. 182 00:14:01,800 --> 00:14:05,680 But beyond all these dates also, if you look, 183 00:14:05,760 --> 00:14:08,960 you still see a mammoth footprint 184 00:14:09,040 --> 00:14:12,280 a meter, a meter and a half above human footprints. 185 00:14:12,360 --> 00:14:14,680 - And there's more mammoth prints below… - Below. Yeah. 186 00:14:14,760 --> 00:14:17,520 …so megafauna and people have been on this horizon 187 00:14:17,600 --> 00:14:19,200 - for thousands of years together. - Yeah. 188 00:14:21,200 --> 00:14:23,640 The White Sands discovery helps to solve 189 00:14:23,720 --> 00:14:26,000 one of the most perplexing mysteries of prehistory, 190 00:14:27,440 --> 00:14:30,560 the sudden extinction of America's Ice Age megafauna 191 00:14:32,080 --> 00:14:35,280 between 13,000 and 11,000 years ago. 192 00:14:37,360 --> 00:14:42,760 The suggestion of archaeology was that human beings hunted down all the megafauna 193 00:14:42,840 --> 00:14:44,040 and butchered them. 194 00:14:44,640 --> 00:14:46,560 I don't know of any hunter-gatherer group 195 00:14:46,640 --> 00:14:49,480 that would willingly exterminate its food supply. 196 00:14:50,000 --> 00:14:54,560 So the notion that humans were responsible for the extinction of the megafauna, 197 00:14:54,640 --> 00:14:57,320 uh, has always seemed, to me, quite bizarre. 198 00:14:59,400 --> 00:15:03,800 The tracks here prove that humans and those animals overlapped 199 00:15:03,880 --> 00:15:07,000 for at least 10,000 years before their extinction. 200 00:15:10,240 --> 00:15:12,560 I think a much better explanation 201 00:15:12,640 --> 00:15:15,040 for the extinction of the Ice Age megafauna 202 00:15:15,120 --> 00:15:21,160 is the global cataclysm that took place around about 12,800-12,900 years ago, 203 00:15:21,240 --> 00:15:22,520 known as the Younger Dryas. 204 00:15:32,800 --> 00:15:35,160 There was a sudden plunge in global temperatures, 205 00:15:35,760 --> 00:15:38,200 a sudden rise in sea levels, 206 00:15:38,280 --> 00:15:43,240 and the world very rapidly became an extremely difficult place to live. 207 00:15:44,320 --> 00:15:47,600 It's a time we call the ancient apocalypse. 208 00:15:49,000 --> 00:15:51,280 North America was hardest hit, 209 00:15:51,360 --> 00:15:54,360 which could explain both the extinction of its megafauna 210 00:15:54,440 --> 00:15:57,160 and also, the big gaps in human history here. 211 00:16:02,000 --> 00:16:05,840 We are going to have to completely change the story of the peopling of the Americas 212 00:16:05,920 --> 00:16:07,280 in the light of this new evidence. 213 00:16:09,280 --> 00:16:12,040 Archaeologists are opening their eyes and their minds 214 00:16:12,120 --> 00:16:14,880 to the possibility of a much older human presence. 215 00:16:16,120 --> 00:16:19,480 We're just touching the tip of the surface of what's to be learned. 216 00:16:19,560 --> 00:16:21,400 I think throughout the Southwest as people look, 217 00:16:21,480 --> 00:16:25,080 they're gonna find sites that are just as old as White Sands also. 218 00:16:25,160 --> 00:16:27,480 So it's like you've opened a door on the past, 219 00:16:27,560 --> 00:16:29,480 - which nobody's stepped through before? - Yeah. 220 00:16:31,760 --> 00:16:34,720 Paradigm shifts don't happen instantly. 221 00:16:34,800 --> 00:16:38,560 It's the accumulation of evidence that finally discredits an old paradigm 222 00:16:38,640 --> 00:16:41,600 and allows eyes to open to new possibilities. 223 00:16:41,680 --> 00:16:43,680 That's what we're witnessing in the Americas now. 224 00:16:46,720 --> 00:16:50,960 What's been discovered here at White Sands is part of a much bigger story, 225 00:16:51,040 --> 00:16:53,400 a global story that I've been investigating 226 00:16:53,480 --> 00:16:55,320 for more than 30 years. 227 00:16:55,400 --> 00:17:00,000 If we want to clear the fog of amnesia that surrounds our remote past, 228 00:17:00,080 --> 00:17:03,520 we need to look much deeper and much further back 229 00:17:03,600 --> 00:17:06,320 than we've ever done before, right here in the Americas 230 00:17:06,400 --> 00:17:08,160 where the timeline of prehistory 231 00:17:08,240 --> 00:17:11,000 keeps on receding with every new discovery. 232 00:17:15,600 --> 00:17:16,760 New discoveries 233 00:17:18,920 --> 00:17:21,920 that are not just being followed by archaeologists. 234 00:17:32,280 --> 00:17:33,720 So, Keanu. 235 00:17:33,800 --> 00:17:34,960 Graham. 236 00:17:35,040 --> 00:17:36,240 Let's talk about the past. 237 00:17:36,320 --> 00:17:40,160 {\an8}- Okay. Why does the past matter to you? 238 00:17:40,920 --> 00:17:42,680 Well, you know. 239 00:17:43,240 --> 00:17:46,200 I remember as a young child just being inquisitive. 240 00:17:46,280 --> 00:17:48,200 And as I have grown up, 241 00:17:48,280 --> 00:17:52,040 it comes to the question of a fundamental sense of 242 00:17:53,400 --> 00:17:54,600 "who are we?" 243 00:17:54,680 --> 00:17:59,920 Yeah. And what's driven me on this quest of my own for more than 30 years, 244 00:18:00,520 --> 00:18:03,240 um, is to try to get back to some sort of source. 245 00:18:03,320 --> 00:18:04,480 Source of what? 246 00:18:05,080 --> 00:18:06,760 The source of who we are. 247 00:18:07,360 --> 00:18:09,840 - And the timeline. - Timeline's all wrong. 248 00:18:09,920 --> 00:18:15,080 That's why those footprints in White Sands were so significant to me. 249 00:18:15,160 --> 00:18:16,000 Mm. 250 00:18:16,080 --> 00:18:18,160 My feeling is that 23,000 years is just the beginning. 251 00:18:18,240 --> 00:18:19,920 We're gonna go back much further than that. 252 00:18:20,000 --> 00:18:22,560 Yeah. I have that… I have that feeling too. 253 00:18:22,640 --> 00:18:27,560 And we are just at the edge of… of rediscovering so much of our lost past. 254 00:18:27,640 --> 00:18:28,560 Mm. 255 00:18:28,640 --> 00:18:32,560 And in a way, America is the place where that story is unfolding. 256 00:18:32,640 --> 00:18:34,680 Well, that's an exciting idea. 257 00:18:36,880 --> 00:18:39,240 I think you're on a quest, Graham, 258 00:18:39,320 --> 00:18:43,400 to teach and to bring understanding, perhaps. 259 00:18:43,480 --> 00:18:47,040 Well, the issue about the Americas is 260 00:18:47,120 --> 00:18:51,320 that there is so much of our past that we've forgotten. 261 00:18:51,400 --> 00:18:57,160 And my role, such as it is, has been to try to recover, 262 00:18:57,240 --> 00:18:59,000 uh, some of that lost memory. 263 00:18:59,600 --> 00:19:03,160 When I think of the past like that, it sounds exciting. 264 00:19:03,240 --> 00:19:07,000 Absolutely. For me, the past is all about mystery. 265 00:19:07,080 --> 00:19:09,920 It's not about what we do know. It's about what we don't know. 266 00:19:10,000 --> 00:19:12,840 The huge areas that have not been explored or investigated. 267 00:19:12,920 --> 00:19:15,080 The possibilities that haven't been explored. 268 00:19:15,160 --> 00:19:16,080 Yeah. 269 00:19:21,560 --> 00:19:24,720 We need to start looking specifically for evidence 270 00:19:24,800 --> 00:19:27,640 in places where we might not have looked before. 271 00:19:29,400 --> 00:19:30,640 During the Ice Age, 272 00:19:30,720 --> 00:19:33,360 the northern part of North America was a frozen wasteland. 273 00:19:33,440 --> 00:19:37,440 The places to look are down near the tropics. 274 00:19:37,520 --> 00:19:38,560 Down near the equator. 275 00:19:38,640 --> 00:19:42,200 Places that were warm, comfortable, nurturing, hospitable. 276 00:19:43,560 --> 00:19:45,360 Perhaps even a vast region 277 00:19:45,440 --> 00:19:49,160 that was long believed to be an archaeological wasteland, 278 00:19:50,760 --> 00:19:53,320 but where astounding secrets of the human past 279 00:19:53,400 --> 00:19:55,400 are now beginning to be revealed. 280 00:19:57,480 --> 00:19:59,240 This is the Amazon. 281 00:20:03,440 --> 00:20:07,080 You're looking at more than six million square kilometers of land 282 00:20:07,160 --> 00:20:10,040 that are still under dense canopy rainforest. 283 00:20:12,600 --> 00:20:17,520 That immense land area is a huge mystery 284 00:20:17,600 --> 00:20:19,880 at the heart of the human story. 285 00:20:19,960 --> 00:20:22,520 And little by little, we're beginning to realize 286 00:20:22,600 --> 00:20:24,600 how enormous that mystery really is. 287 00:20:26,360 --> 00:20:30,080 For decades, the dominant view of archaeologists was that 288 00:20:30,160 --> 00:20:32,520 the Amazon's only historical inhabitants 289 00:20:32,600 --> 00:20:35,920 were small semi-nomadic tribes of hunter-foragers, 290 00:20:36,960 --> 00:20:39,800 much like those still surviving in the rainforest today. 291 00:20:42,440 --> 00:20:45,640 But I believe the dominant view is wrong. 292 00:20:53,240 --> 00:20:57,120 I'm headed to the far west of Brazil and the state of Acre. 293 00:20:58,120 --> 00:21:00,000 Like most of the Amazon basin, 294 00:21:00,080 --> 00:21:03,520 it had long been blanketed by sprawling rainforest 295 00:21:05,920 --> 00:21:09,000 until vast expanses began to be burned down 296 00:21:09,520 --> 00:21:11,480 to make way for cattle ranches. 297 00:21:15,480 --> 00:21:21,640 Coming to the Amazon rainforest is both an exhilarating and depressing experience. 298 00:21:23,720 --> 00:21:26,720 The amount of land that's been cleared of trees 299 00:21:26,800 --> 00:21:30,960 is an unfolding modern day disaster with no easy solution. 300 00:21:32,440 --> 00:21:35,240 But as new swathes of land have been cleared, 301 00:21:35,320 --> 00:21:37,600 it's led to something that no one expected. 302 00:21:42,840 --> 00:21:45,080 {\an8}I'm here to meet Dr. Alceu Ranzi, 303 00:21:46,520 --> 00:21:51,320 a paleogeographer who began his career studying the Amazon's Ice Age animals. 304 00:21:56,240 --> 00:21:59,040 He wants to show me evidence of a mystery 305 00:21:59,120 --> 00:22:01,280 that remains unsolved today. 306 00:22:11,240 --> 00:22:12,560 - Whoa! - Whoa! 307 00:22:13,760 --> 00:22:14,720 Roller coaster. 308 00:22:23,040 --> 00:22:26,920 From up here, the ongoing devastation is unmissable. 309 00:22:31,000 --> 00:22:33,400 You can see how much of it has been cleared. 310 00:22:33,480 --> 00:22:34,800 - So much. So much. - Yes. 311 00:22:36,280 --> 00:22:40,080 Twenty years from now, all the forest will disappear. 312 00:22:40,880 --> 00:22:45,360 But this clearance has opened a little window on a great mystery. 313 00:22:46,760 --> 00:22:50,440 In 1986, Dr. Ranzi was flying over this region 314 00:22:50,520 --> 00:22:53,360 when he caught a glimpse of something unexpected. 315 00:22:54,600 --> 00:22:58,040 I was arriving in Rio Branco by jet, commercial jet. 316 00:22:58,120 --> 00:22:58,960 Yes. 317 00:22:59,040 --> 00:23:00,880 - Sitting in the window seat. - Yeah. 318 00:23:00,960 --> 00:23:03,280 - And looking at the environment like this. - Yes. 319 00:23:03,360 --> 00:23:04,680 Like this. 320 00:23:04,760 --> 00:23:06,760 And then I see a big circle. 321 00:23:15,080 --> 00:23:17,520 My God. What's this? Huh? 322 00:23:17,600 --> 00:23:19,960 - And the jet is so fast. Gone. - Yeah. 323 00:23:20,800 --> 00:23:21,680 Disappear. 324 00:23:24,040 --> 00:23:25,680 He didn't yet realize it, 325 00:23:25,760 --> 00:23:29,080 but in those few seconds, Dr. Ranzi had spotted something, 326 00:23:29,160 --> 00:23:32,200 that if our old notions of the Amazon are true, 327 00:23:32,280 --> 00:23:33,800 simply shouldn't exist. 328 00:23:36,320 --> 00:23:37,520 - Wow. - Yeah. 329 00:23:38,800 --> 00:23:44,040 Giant geometrical shapes, as much as 1,000 feet across, 330 00:23:44,960 --> 00:23:48,160 formed by trenches and massive piles of earth, 331 00:23:49,240 --> 00:23:51,240 now known as geoglyphs. 332 00:23:52,880 --> 00:23:54,960 Fantastic design. My God. 333 00:23:55,040 --> 00:23:57,400 Fantastic design. And so big. 334 00:23:57,480 --> 00:23:58,360 And enormous. 335 00:23:58,440 --> 00:24:00,600 - So enormous. Enormous. - Yeah. Yeah. 336 00:24:00,680 --> 00:24:01,520 Yeah. 337 00:24:04,360 --> 00:24:06,720 - Beautiful. Beautiful thing. - Beautiful. 338 00:24:09,320 --> 00:24:13,680 And what I'm seeing is a square surrounded by an oval. 339 00:24:14,560 --> 00:24:16,000 Ah, look. Another one. 340 00:24:16,720 --> 00:24:19,920 - Yes. They're everywhere. - Everywhere. 341 00:24:20,960 --> 00:24:22,000 Another one here. 342 00:24:22,880 --> 00:24:23,960 Another one here. 343 00:24:24,880 --> 00:24:27,040 Wow. Incredible. 344 00:24:31,440 --> 00:24:33,960 The perfect geometry is only visible 345 00:24:34,040 --> 00:24:35,960 from hundreds of feet in the air. 346 00:24:36,880 --> 00:24:40,400 And yet, somehow, this was all created by people 347 00:24:40,480 --> 00:24:42,880 with their feet stuck firmly on the ground. 348 00:24:45,600 --> 00:24:49,440 This, to me, raises a feeling of deep respect. 349 00:24:53,000 --> 00:24:57,240 How do they have the perspective to see how they would look from above? 350 00:24:59,440 --> 00:25:00,800 It's a powerful experience. 351 00:25:00,880 --> 00:25:05,400 I've visited many temples and pyramids and sacred sites around the world, 352 00:25:05,480 --> 00:25:08,040 and this has a very special feeling. 353 00:25:08,560 --> 00:25:10,560 You know, very special. 354 00:25:13,680 --> 00:25:16,240 I mean, it touches my heart. 355 00:25:16,320 --> 00:25:21,120 I'm… I'm looking at something majestic. 356 00:25:27,480 --> 00:25:31,680 It's as though the curtain is being pulled back from the… from the Mona Lisa. 357 00:25:31,760 --> 00:25:35,000 Suddenly, I'm seeing something that I didn't know was there, 358 00:25:35,080 --> 00:25:37,880 and it had an enormous emotional impact upon me. 359 00:25:42,640 --> 00:25:45,640 It was as though the ancients were speaking to me directly. 360 00:25:45,720 --> 00:25:50,080 "Look what we could do. Don't underestimate us." 361 00:25:50,840 --> 00:25:52,320 "We were scientists." 362 00:25:57,640 --> 00:26:02,360 When you first told archaeologists about this phenomenon, what did they say? 363 00:26:02,440 --> 00:26:05,200 - The first one was a famous archaeologist. - Yes. 364 00:26:05,280 --> 00:26:07,680 - I showed her the picture… - Yeah. Yeah. 365 00:26:07,760 --> 00:26:13,520 …and she looked and said, "Where is it? In the Amazon? It's impossible." 366 00:26:14,320 --> 00:26:17,160 It's impossible? Look at the picture. 367 00:26:17,240 --> 00:26:18,080 Help me, please. 368 00:26:18,160 --> 00:26:19,880 - I don't know what this is. - Yes. 369 00:26:22,800 --> 00:26:25,160 The evidence is undeniable 370 00:26:25,240 --> 00:26:28,080 and spread across an area the size of West Virginia. 371 00:26:32,920 --> 00:26:35,000 At first, it was thought these mounds 372 00:26:35,080 --> 00:26:37,080 might be defensive ramparts. 373 00:26:39,240 --> 00:26:41,680 But there's no evidence of warfare here. 374 00:26:41,760 --> 00:26:45,880 And the ditches lie inside the mounds, so they're not moats. 375 00:26:48,440 --> 00:26:51,880 And there's no evidence that they were used as settlements. 376 00:26:56,800 --> 00:27:01,320 It's impossible to avoid speculation when we look at the Amazon geoglyphs. Why? 377 00:27:01,400 --> 00:27:04,680 Because there are no written documents from their original creators 378 00:27:04,760 --> 00:27:07,360 that tell us why they made them. We don't know why they made them. 379 00:27:09,880 --> 00:27:13,760 What's your thought about how many there are in the whole area? 380 00:27:15,360 --> 00:27:16,800 - Thousands. - Thousands. 381 00:27:16,880 --> 00:27:19,080 - Thousands. Thousands. - All right. 382 00:27:19,160 --> 00:27:20,160 Thousands. 383 00:27:24,720 --> 00:27:26,920 It raises many questions. 384 00:27:27,000 --> 00:27:29,680 How old are these geometrical earthworks? 385 00:27:30,800 --> 00:27:32,200 Are they older or younger 386 00:27:32,280 --> 00:27:34,600 than the Amazon rainforest that long concealed them? 387 00:27:39,520 --> 00:27:43,720 What was the size of the workforce that created them in the first place? 388 00:27:46,240 --> 00:27:49,880 And what skills were required to direct the work successfully? 389 00:27:51,960 --> 00:27:53,160 This is not new work. 390 00:27:53,240 --> 00:27:55,680 This is people who already knew what they were doing. 391 00:27:55,760 --> 00:27:57,760 They've done it many times before. 392 00:27:58,840 --> 00:28:01,680 I would love to know what was in their minds 393 00:28:01,760 --> 00:28:03,000 when they were making this. 394 00:28:03,080 --> 00:28:04,120 Yeah. 395 00:28:04,200 --> 00:28:05,880 It's such a huge effort and energy. 396 00:28:12,520 --> 00:28:15,720 The geoglyph building project is a compelling mystery, 397 00:28:15,800 --> 00:28:18,280 one that scores of researchers are now grappling with. 398 00:28:25,000 --> 00:28:28,880 Back on the ground, we're meeting Professor Martti Pärssinen, 399 00:28:28,960 --> 00:28:32,360 an archaeologist and anthropologist from the University of Helsinki, 400 00:28:34,280 --> 00:28:38,920 who's been searching for answers alongside Dr. Ranzi for two decades. 401 00:28:41,400 --> 00:28:44,280 Clearly, we're looking at an enormous phenomenon here, 402 00:28:44,360 --> 00:28:45,960 not something small. 403 00:28:46,040 --> 00:28:49,240 And a phenomenon that shows knowledge of geometry 404 00:28:49,720 --> 00:28:53,040 and also a high level of organization must have been involved. 405 00:28:53,640 --> 00:28:56,800 I think so because many of these are so complicated. 406 00:28:56,880 --> 00:28:57,920 Very complicated. 407 00:28:58,000 --> 00:29:02,080 {\an8}It is necessary to have pre-planned how to do it and how to organize it. 408 00:29:07,480 --> 00:29:10,000 After examining hundreds of geoglyphs, 409 00:29:10,080 --> 00:29:13,640 Professor Pärssinen has uncovered a key piece of evidence 410 00:29:14,560 --> 00:29:17,680 that points to the type of society that built these structures, 411 00:29:20,720 --> 00:29:25,720 ancient raised roads connecting many of the geoglyphs. 412 00:29:29,160 --> 00:29:31,160 This area is full of roads. 413 00:29:31,240 --> 00:29:35,000 - Hunters and gatherers do not build roads. - Mm-hmm. 414 00:29:35,080 --> 00:29:36,840 They don't have any need for that. 415 00:29:36,920 --> 00:29:42,000 It needs already society with a much more higher level of thinking. 416 00:29:42,080 --> 00:29:45,360 - I see. - And relationships between each other. 417 00:29:45,440 --> 00:29:48,120 - So that is a really complex society. - Yeah. 418 00:29:48,200 --> 00:29:51,080 And if I'm right, this was not expected before in the Amazon. 419 00:29:51,160 --> 00:29:54,920 No, it was totally a… surprise for us. 420 00:29:57,280 --> 00:30:00,040 To figure out more about who the builders were, 421 00:30:00,120 --> 00:30:04,840 Professor Pärssinen's team has been excavating the areas around the geoglyphs, 422 00:30:04,920 --> 00:30:07,160 including this one known as Tequinho. 423 00:30:09,000 --> 00:30:13,400 Archaeologically, tell me what you do find, uh, inside the earthworks? 424 00:30:13,480 --> 00:30:17,680 From Tequinho, we found 40,000, uh, shards of ceramics. 425 00:30:20,760 --> 00:30:23,600 These shards were around 2,000 years old. 426 00:30:24,200 --> 00:30:28,880 The earthwork itself was dated to around 2,500 years ago. 427 00:30:28,960 --> 00:30:32,480 But the pottery was unexpectedly sophisticated. 428 00:30:33,480 --> 00:30:36,640 - Most of it is of high quality… - Right. 429 00:30:36,720 --> 00:30:39,360 - …and polychrome ceramics. - Right. 430 00:30:39,440 --> 00:30:42,360 So that polychrome is a rather advanced form of ceramics. 431 00:30:42,440 --> 00:30:46,760 Yes, normally polychrome ceramic is considered to be part of civilization. 432 00:30:49,440 --> 00:30:52,640 The multicolored ceramics raised an unexpected parallel 433 00:30:54,080 --> 00:30:58,640 with another far-off culture known for their deep knowledge of geometry, 434 00:31:00,400 --> 00:31:01,880 the ancient Greeks. 435 00:31:03,560 --> 00:31:07,000 Generally, historians and archaeologists say that, you know, 436 00:31:07,080 --> 00:31:09,840 the Greeks were amongst the first to create geometry, 437 00:31:09,920 --> 00:31:12,600 but clearly, we have to reconsider that view. 438 00:31:12,680 --> 00:31:14,040 I think you're right because 439 00:31:14,120 --> 00:31:17,920 this Geoglyph culture is exactly the same time 440 00:31:18,000 --> 00:31:21,600 when the Greek culture had archaeological period 441 00:31:21,680 --> 00:31:24,760 that has been called Geometric Greek period. 442 00:31:25,680 --> 00:31:27,720 {\an8} 443 00:31:27,800 --> 00:31:30,240 {\an8}The fact that two cultures so far apart 444 00:31:30,320 --> 00:31:31,760 {\an8}were making geometric art 445 00:31:31,840 --> 00:31:35,080 {\an8}and producing sophisticated pottery around the same time 446 00:31:35,600 --> 00:31:37,520 {\an8}seems more than a coincidence. 447 00:31:40,760 --> 00:31:44,000 {\an8}It's fascinating that we're seeing this parallel development of ideas 448 00:31:44,080 --> 00:31:45,520 between cultures unconnected. 449 00:31:45,600 --> 00:31:46,560 Yes, exactly. 450 00:31:48,000 --> 00:31:51,960 I'm not suggesting the Greek and Amazonian cultures were in contact. 451 00:31:53,880 --> 00:31:56,800 But could both perhaps have shared a legacy of knowledge 452 00:31:56,880 --> 00:31:59,760 inherited from a vastly older civilization, 453 00:32:00,920 --> 00:32:03,720 one that traveled the Earth in the night of time, 454 00:32:04,400 --> 00:32:06,640 leaving traces of its wisdom wherever it went? 455 00:32:09,080 --> 00:32:12,000 Now, the way that archaeology explains this is to say, 456 00:32:12,080 --> 00:32:14,600 "Well, look, we all have the same human minds, 457 00:32:14,680 --> 00:32:17,880 and so we're all going to do the same things." 458 00:32:17,960 --> 00:32:19,800 {\an8}And the fact that they did them at the same time 459 00:32:19,880 --> 00:32:23,160 {\an8}in widely separated geographical locations 460 00:32:23,240 --> 00:32:25,840 is just explained by that shared neurology. 461 00:32:25,920 --> 00:32:28,200 I'm afraid that just doesn't work for me. 462 00:32:29,960 --> 00:32:33,560 It's obvious from looking at the design that there must be a background to this. 463 00:32:33,640 --> 00:32:36,880 This isn't something that just appears out of nowhere suddenly one night. 464 00:32:36,960 --> 00:32:41,040 So how far back can you trace the prehistory of this area? 465 00:32:41,120 --> 00:32:44,160 And is there any evidence that these places were special 466 00:32:44,240 --> 00:32:47,640 before the geoglyphs were put there? 467 00:32:47,720 --> 00:32:52,120 That's a very good question because we excavated up to one meter… 468 00:32:52,200 --> 00:32:55,200 - Mm-hmm. - …and after that, the ceramic disappeared. 469 00:32:55,280 --> 00:32:58,720 But then I noticed that the charcoal continued. 470 00:32:58,800 --> 00:32:59,640 Mm-hmm. 471 00:32:59,720 --> 00:33:02,240 And we went down and down and down, 472 00:33:02,320 --> 00:33:06,640 and then we started to take radiocarbon samples, 473 00:33:06,720 --> 00:33:10,840 and finally we found that many of these sites 474 00:33:10,920 --> 00:33:14,360 have been established already 10,000 years ago. 475 00:33:15,400 --> 00:33:18,400 My goodness. Wow. From the deep past. 476 00:33:18,480 --> 00:33:20,800 - From the deep past, exactly. - Yeah. Fascinating. 477 00:33:23,600 --> 00:33:28,200 So, 10,000 years ago, not long after the end of the Ice Age, 478 00:33:28,880 --> 00:33:31,640 it looks like these same sites may already have held 479 00:33:31,720 --> 00:33:34,920 some great significance to the people who visited them. 480 00:33:36,320 --> 00:33:38,240 That adds more to the picture then. 481 00:33:38,320 --> 00:33:42,560 So in a sense, what we're looking at now is the latest incarnation 482 00:33:42,640 --> 00:33:45,600 of a very long-term association with the land, 483 00:33:45,680 --> 00:33:47,960 - a very long-term project in a way. - Yes. 484 00:33:48,880 --> 00:33:53,560 We have evidence of a highly organized, sophisticated Indigenous civilization 485 00:33:53,640 --> 00:33:56,960 taking all the initiatives that we would expect of a high civilization. 486 00:33:58,640 --> 00:34:01,160 This research is truly groundbreaking 487 00:34:01,240 --> 00:34:03,960 for our growing understanding of human history. 488 00:34:06,920 --> 00:34:10,640 We have to reconsider our whole ideas of the ancient Amazon 489 00:34:10,720 --> 00:34:13,640 and our whole ideas of ancient civilizations. 490 00:34:13,720 --> 00:34:15,840 To me, this is one of the most exciting discoveries 491 00:34:15,920 --> 00:34:17,840 that has been made in the last 100 years. 492 00:34:17,920 --> 00:34:19,560 It's really, really something special. 493 00:34:24,560 --> 00:34:26,560 And the work is far from over. 494 00:34:28,480 --> 00:34:33,000 We are now aware of a phenomenon that we didn't know existed 20 years ago. 495 00:34:33,080 --> 00:34:36,760 The next question is how many of them are there? 496 00:34:36,840 --> 00:34:39,240 How many of these earthworks actually exist? 497 00:34:42,720 --> 00:34:45,440 To date, more than 1,000 geoglyphs have been discovered 498 00:34:45,520 --> 00:34:47,320 in the Acre region alone. 499 00:34:53,080 --> 00:34:55,000 Eight miles from the airfield, 500 00:34:55,640 --> 00:34:58,480 Professor Pärssinen is hoping to add to the tally 501 00:34:58,560 --> 00:35:00,680 in an unexplored part of the forest 502 00:35:00,760 --> 00:35:04,200 near an exposed geoglyph called Fazenda Cipoal. 503 00:35:07,160 --> 00:35:11,440 Our understanding stopped on the border of the forest, 504 00:35:11,520 --> 00:35:13,720 and now we want to know what's there. 505 00:35:16,920 --> 00:35:19,200 To detect what's beneath the trees, 506 00:35:19,280 --> 00:35:22,840 the team is depending on a technology that sees through them. 507 00:35:24,320 --> 00:35:25,320 LiDAR. 508 00:35:27,040 --> 00:35:32,080 By using this system, we can clear the vegetation out 509 00:35:32,160 --> 00:35:35,280 and get the results from the bottom. 510 00:35:35,360 --> 00:35:39,280 And in that way, we can see the topography exactly. 511 00:35:40,960 --> 00:35:43,760 With LiDAR, you can see what's under the canopy 512 00:35:43,840 --> 00:35:45,840 without destroying a single tree. 513 00:35:46,440 --> 00:35:48,160 You don't have to tear down the rainforest. 514 00:35:48,240 --> 00:35:49,960 You don't have to destroy anything. 515 00:35:51,680 --> 00:35:54,640 Joining the hunt is Fabio De Novaes Filho, 516 00:35:54,720 --> 00:35:58,840 who will be surveying the forest with his drone-based LiDAR system. 517 00:35:59,560 --> 00:36:02,120 We are going to fly at 80 meters. 518 00:36:02,200 --> 00:36:03,240 {\an8}That's good. 519 00:36:03,320 --> 00:36:08,640 {\an8}Maybe we can have about 100 to 200 points per square meter. 520 00:36:08,720 --> 00:36:09,960 That's excellent. 521 00:36:10,040 --> 00:36:12,600 The topography will be very precise. 522 00:36:27,600 --> 00:36:30,680 The device fires laser beams down between the leaves, 523 00:36:30,760 --> 00:36:32,760 detecting changes in elevation. 524 00:36:36,320 --> 00:36:39,840 The data is then used to create a 3D map of the landscape, 525 00:36:39,920 --> 00:36:41,720 revealing any anomalies. 526 00:36:43,560 --> 00:36:46,600 These drones will change everything in archaeology. 527 00:36:53,800 --> 00:36:57,160 While the team looks to see what might be hidden beneath the canopy, 528 00:36:57,240 --> 00:36:59,080 I'm investigating a different question. 529 00:37:01,920 --> 00:37:05,160 Why were the geoglyphs built in the first place? 530 00:37:07,440 --> 00:37:11,760 Archaeological excavations offer no clue as to why they were created. 531 00:37:12,760 --> 00:37:16,160 But the Indigenous people in this area hold knowledge and memories 532 00:37:16,240 --> 00:37:18,720 that help to shed light on the significance and meaning 533 00:37:18,800 --> 00:37:20,800 of these remarkable earthworks. 534 00:37:25,800 --> 00:37:30,520 I've come to the geoglyph known as Jaco Sá to meet one of its caretakers. 535 00:37:34,720 --> 00:37:39,520 {\an8}Antônio Apurinã is from the Apurinã people and works within FUNAI, 536 00:37:39,600 --> 00:37:42,080 Brazil's national Indigenous agency. 537 00:37:43,920 --> 00:37:46,000 The Apurinã are a people 538 00:37:46,080 --> 00:37:53,040 whose origins are closely tied to nature, to the earth. 539 00:37:53,120 --> 00:37:55,920 What is the opinion of the Apurinã 540 00:37:56,000 --> 00:37:59,520 about these constructions? What is your feeling about them? 541 00:37:59,600 --> 00:38:01,960 I am standing in a place 542 00:38:04,200 --> 00:38:07,320 for which I have the utmost respect. 543 00:38:08,520 --> 00:38:11,680 For us, it is a sacred place. 544 00:38:11,760 --> 00:38:16,080 It wasn't made for war. It wasn't made for defense. 545 00:38:16,160 --> 00:38:21,200 It was made to express something cultural. 546 00:38:24,000 --> 00:38:27,080 If the geometrical shapes have no practical function, 547 00:38:27,160 --> 00:38:31,240 such a huge effort to create them suggests a higher purpose. 548 00:38:33,320 --> 00:38:37,000 There may be a clue in the spiritual traditions of the Apurinã. 549 00:38:37,880 --> 00:38:42,080 So, we compare this here 550 00:38:42,160 --> 00:38:47,960 as if it were a circle of the Apurinã 551 00:38:48,040 --> 00:38:54,120 when they dance and pay homage to a deceased chief, a shaman, 552 00:38:54,600 --> 00:38:57,680 to an important person from the village who has died. 553 00:39:01,600 --> 00:39:06,160 We see this space as somewhere that would welcome us 554 00:39:06,920 --> 00:39:13,040 once we have left the material world. 555 00:39:16,040 --> 00:39:18,000 This is a view very strongly held 556 00:39:18,080 --> 00:39:21,800 amongst Indigenous cultures across the Amazon to this day, 557 00:39:21,880 --> 00:39:25,160 that, after death, our soul makes a journey, 558 00:39:25,240 --> 00:39:28,520 ultimately to an afterlife existence. 559 00:39:30,120 --> 00:39:32,440 This is an idea that is found all around the world, 560 00:39:32,520 --> 00:39:37,920 and structures were created to aid the journey of the soul after death. 561 00:39:40,240 --> 00:39:43,280 Let's take the example of pyramids. 562 00:39:44,080 --> 00:39:47,400 I don't know of a single pyramidal structure 563 00:39:47,480 --> 00:39:50,320 around the world that isn't connected 564 00:39:50,400 --> 00:39:54,120 to the notion of death and the afterlife journey of the soul. 565 00:39:56,280 --> 00:39:59,880 This is particularly evident in the ancient Egyptian pyramids, 566 00:39:59,960 --> 00:40:05,200 but it's just as evident in the pyramids of the Americas and of Mexico. 567 00:40:07,560 --> 00:40:10,000 So it's interesting to learn from Antônio 568 00:40:10,080 --> 00:40:13,040 that the Amazon geoglyphs may have served a similar purpose 569 00:40:13,120 --> 00:40:17,480 for the people who first created them untold thousands of years ago. 570 00:40:24,920 --> 00:40:29,600 Back at the airfield, it's time to find out if our LiDAR survey 571 00:40:29,680 --> 00:40:33,840 has detected yet more of these sacred sites beneath the canopy. 572 00:40:35,360 --> 00:40:37,680 So, Fabio, please, tell us what you found. 573 00:40:38,400 --> 00:40:40,760 We surveyed the area using the LiDAR. 574 00:40:41,360 --> 00:40:43,920 And you see the trees? 575 00:40:44,000 --> 00:40:44,840 Yeah. 576 00:40:48,120 --> 00:40:49,160 And now… 577 00:40:50,560 --> 00:40:52,240 Wow. Incredible. 578 00:40:52,320 --> 00:40:53,240 Wow. 579 00:41:24,000 --> 00:41:25,800 {\an8}