1
00:00:08,299 --> 00:00:09,551
BENEDICT: Enter a world
2
00:00:11,136 --> 00:00:13,138
just beyond your perception.
3
00:00:19,019 --> 00:00:22,272
A world of extraordinary animals...
4
00:00:23,231 --> 00:00:24,566
with hidden powers
5
00:00:25,233 --> 00:00:26,526
and super senses.
6
00:00:27,694 --> 00:00:29,863
If you think you know nature...
7
00:00:32,657 --> 00:00:33,658
think again.
8
00:00:45,378 --> 00:00:46,880
In a competitive world,
9
00:00:48,089 --> 00:00:49,299
it can be very hard...
10
00:00:50,133 --> 00:00:51,509
to tell friend
11
00:00:52,010 --> 00:00:53,303
from foe.
12
00:00:55,805 --> 00:00:57,265
The Kalahari Desert.
13
00:00:58,892 --> 00:01:00,393
Here, the harsh sun
14
00:01:00,852 --> 00:01:03,688
forces some of the juiciest
and toughest critters
15
00:01:05,231 --> 00:01:06,858
to hide underground.
16
00:01:10,653 --> 00:01:14,949
Only the most super-skilled hunters
can get at them.
17
00:01:21,456 --> 00:01:25,460
Meerkats can sniff out the best prey
beneath the surface.
18
00:01:35,804 --> 00:01:38,056
But when your head's buried in the sand,
19
00:01:39,557 --> 00:01:41,810
digging eight hours a day...
20
00:01:47,190 --> 00:01:49,067
it pays to have friends...
21
00:01:49,275 --> 00:01:50,401
(BIRD CALLS)
22
00:01:50,568 --> 00:01:51,820
BENEDICT: ...in high places.
23
00:01:57,909 --> 00:02:00,161
A drongo's razor-sharp vision
24
00:02:00,870 --> 00:02:02,622
can pinpoint a tiny bug
25
00:02:03,456 --> 00:02:05,333
over 300 feet away.
26
00:02:07,085 --> 00:02:08,503
And from way up here,
27
00:02:09,087 --> 00:02:11,965
it can spot an enemy a mile off.
28
00:02:12,298 --> 00:02:13,800
(EAGLE CALLING)
29
00:02:20,807 --> 00:02:23,768
BENEDICT:
Like a 14-pound meerkat-eating,
30
00:02:23,977 --> 00:02:25,061
martial eagle.
31
00:02:26,354 --> 00:02:27,438
(CHIRPS)
32
00:02:27,605 --> 00:02:29,023
BENEDICT: Meerkats understand
33
00:02:29,107 --> 00:02:30,650
that's drongo for...
34
00:02:30,817 --> 00:02:31,818
(CHIRPS)
35
00:02:32,527 --> 00:02:34,070
BENEDICT: ..."threat from the skies".
36
00:02:35,321 --> 00:02:37,574
(MEERKATS SQUEALING)
37
00:02:45,081 --> 00:02:47,083
(MEERKATS SQUEALING)
38
00:02:49,127 --> 00:02:51,629
-(BIRD CALLING)
-(MEERKATS CHATTERING)
39
00:02:53,381 --> 00:02:54,674
BENEDICT: When their trusted friend...
40
00:02:54,841 --> 00:02:56,009
(WHISTLES)
41
00:02:56,092 --> 00:02:57,385
BENEDICT: ...gives the all-clear,
42
00:02:58,261 --> 00:03:00,722
the meerkats know
it's safe to come out again.
43
00:03:02,724 --> 00:03:06,227
(MEERKATS CHATTERING)
44
00:03:15,028 --> 00:03:16,863
BENEDICT: And they get back to work.
45
00:03:19,490 --> 00:03:20,909
(SQUEALS)
46
00:03:25,205 --> 00:03:26,581
BENEDICT: Jackpot.
47
00:03:26,706 --> 00:03:28,124
Protein and water
48
00:03:28,416 --> 00:03:30,543
in one poisonous package.
49
00:03:39,928 --> 00:03:41,763
Thankfully meerkats are experts...
50
00:03:41,888 --> 00:03:43,890
-(MEERKAT CHATTERS)
-BENEDICT: ...at dispatching scorpions.
51
00:03:46,893 --> 00:03:48,269
But this story
52
00:03:48,519 --> 00:03:49,979
has another sting in the tail.
53
00:03:52,357 --> 00:03:53,524
(SHARP BIRD CALLS)
54
00:03:53,691 --> 00:03:55,068
BENEDICT: That's the alarm again.
55
00:03:55,318 --> 00:03:57,028
-(SHARP BIRD CALLS)
-(MEERKATS CHATTERING)
56
00:04:03,660 --> 00:04:04,911
BENEDICT: But this time...
57
00:04:06,788 --> 00:04:08,957
there is no eagle.
58
00:04:09,457 --> 00:04:10,500
(WHISTLES)
59
00:04:17,215 --> 00:04:18,466
BENEDICT: The drongo
60
00:04:19,217 --> 00:04:20,385
is a liar,
61
00:04:21,344 --> 00:04:22,887
a cunning con artist,
62
00:04:23,429 --> 00:04:24,514
who takes advantage
63
00:04:24,722 --> 00:04:26,224
of the meerkat's hard work
64
00:04:26,808 --> 00:04:28,935
to steal a free lunch.
65
00:04:31,437 --> 00:04:33,648
But cry eagle too many times...
66
00:04:34,774 --> 00:04:36,317
(BIRD CALLS)
67
00:04:36,693 --> 00:04:37,944
(MEERKAT PURRING)
68
00:04:44,826 --> 00:04:47,161
BENEDICT:
...and the meerkats get wise to the game.
69
00:04:48,746 --> 00:04:49,914
(WHISTLES)
70
00:05:00,383 --> 00:05:02,969
BENEDICT: Now, that call can't be ignored.
71
00:05:03,469 --> 00:05:04,595
(BIRD CALLS)
72
00:05:04,804 --> 00:05:05,888
BENEDICT: It's a meerkat alarm.
73
00:05:09,684 --> 00:05:11,060
(MEERKATS SQUEALING)
74
00:05:18,401 --> 00:05:19,444
BENEDICT: Or is it?
75
00:05:23,406 --> 00:05:25,491
-(BIRD CHITTERS)
-BENEDICT: The devious drongo...
76
00:05:30,163 --> 00:05:33,041
is also a mind-blowing mimic.
77
00:05:36,627 --> 00:05:37,837
She can switch
78
00:05:38,004 --> 00:05:40,340
between 30 different alarm imitations.
79
00:05:43,301 --> 00:05:45,386
And as long as she tells the truth,
80
00:05:45,511 --> 00:05:46,554
sometimes,
81
00:05:46,679 --> 00:05:50,308
meerkats can't afford
to ignore their two-faced frenemy.
82
00:05:50,516 --> 00:05:51,893
(SQUEAKY BIRD CALLS)
83
00:05:53,436 --> 00:05:57,065
BENEDICT: Animals use extraordinary powers
to outsmart the competition.
84
00:05:59,442 --> 00:06:01,319
But often, the greatest enemy
85
00:06:02,362 --> 00:06:04,405
is the one you least expect.
86
00:06:04,822 --> 00:06:06,282
(MEERKATS CHATTERING)
87
00:06:11,120 --> 00:06:13,998
(THEME MUSIC PLAYING)
88
00:06:17,335 --> 00:06:18,836
(BIRDS CHIRPING)
89
00:06:21,631 --> 00:06:24,592
BENEDICT:
In nature, conflict is everywhere.
90
00:06:27,804 --> 00:06:30,807
An Austrian park may seem peaceful enough,
91
00:06:33,476 --> 00:06:34,685
but there's an animal here
92
00:06:34,769 --> 00:06:37,271
who knows how to stir up the competition,
93
00:06:38,648 --> 00:06:41,109
and turn it to her advantage.
94
00:06:44,654 --> 00:06:47,657
This female European hamster
95
00:06:47,865 --> 00:06:50,410
is looking for the fittest mate possible.
96
00:06:54,414 --> 00:06:57,500
A dozen normally solitary males live here.
97
00:07:04,132 --> 00:07:06,509
But rather than waste time
checking them out,
98
00:07:07,385 --> 00:07:09,470
she arranges a little contest.
99
00:07:11,139 --> 00:07:12,515
(SQUEALS)
100
00:07:12,723 --> 00:07:17,437
BENEDICT: Her siren song
has a powerful ultrasonic pitch.
101
00:07:17,854 --> 00:07:20,481
It's been slowed down so we can hear it.
102
00:07:22,900 --> 00:07:24,902
But any male within 60 feet
103
00:07:25,361 --> 00:07:27,738
receives her call loud and clear.
104
00:07:28,448 --> 00:07:29,740
(FEMALE HAMSTER SQUEALS)
105
00:07:31,451 --> 00:07:32,785
BENEDICT: The race is on.
106
00:07:34,954 --> 00:07:38,791
(SQUEALS)
107
00:07:46,257 --> 00:07:47,967
BENEDICT: Being quick to respond
108
00:07:48,176 --> 00:07:49,343
is a good sign.
109
00:07:50,511 --> 00:07:53,306
But how to choose
between the two front runners.
110
00:07:58,311 --> 00:08:00,271
She releases a signature scent,
111
00:08:03,691 --> 00:08:05,318
a potent aphrodisiac.
112
00:08:10,072 --> 00:08:11,365
Just the slightest whiff
113
00:08:11,574 --> 00:08:15,495
sends a rush of adrenaline
coursing through the male's blood.
114
00:08:17,038 --> 00:08:19,707
Testosterone levels
can increase tenfold...
115
00:08:23,336 --> 00:08:24,504
turning these fluffy rodents
116
00:08:25,213 --> 00:08:28,382
into one-pound balls of teeth and fury.
117
00:08:35,306 --> 00:08:37,058
Fights can turn deadly.
118
00:08:43,564 --> 00:08:45,441
And all the female has to do...
119
00:08:46,150 --> 00:08:47,944
is let the competition play out.
120
00:09:19,308 --> 00:09:20,476
Rival chased off,
121
00:09:24,021 --> 00:09:27,233
the victor makes himself presentable,
122
00:09:30,570 --> 00:09:31,988
then he's ready
123
00:09:32,196 --> 00:09:33,531
to meet his mate.
124
00:09:37,243 --> 00:09:39,870
But it's the female who's the real winner.
125
00:09:42,832 --> 00:09:44,750
Making males fight over her
126
00:09:45,876 --> 00:09:48,713
to secure the perfect partner.
127
00:10:03,394 --> 00:10:06,147
Standing up to your rivals risks a fight.
128
00:10:08,983 --> 00:10:13,779
So, some creatures go to amazing lengths
to avoid coming to blows.
129
00:10:15,364 --> 00:10:17,867
In California's giant kelp forests,
130
00:10:18,618 --> 00:10:20,286
there's a hand-sized fish
131
00:10:20,536 --> 00:10:22,788
called a Sarcastic Fringehead.
132
00:10:26,834 --> 00:10:28,961
Its bizarre bulging eyes
133
00:10:29,712 --> 00:10:32,381
give a panoramic view
of dangers all around.
134
00:10:41,641 --> 00:10:44,810
Many predators would happily snap up
a little fish like this,
135
00:10:48,189 --> 00:10:50,066
so he needs somewhere to hide.
136
00:10:52,234 --> 00:10:53,653
A snail shell...
137
00:10:54,487 --> 00:10:55,821
is the perfect place.
138
00:11:10,503 --> 00:11:11,545
But...
139
00:11:11,837 --> 00:11:13,714
it's already occupied
140
00:11:14,757 --> 00:11:16,676
by a two-spot octopus.
141
00:11:24,433 --> 00:11:26,477
Hiding places are in such demand,
142
00:11:27,269 --> 00:11:28,854
they have to be fought for.
143
00:11:29,897 --> 00:11:32,274
But better to pick
on someone his own size.
144
00:11:36,779 --> 00:11:38,322
Another Fringehead.
145
00:11:40,616 --> 00:11:42,076
To avoid injury,
146
00:11:42,284 --> 00:11:45,121
these fish have an extraordinary way
147
00:11:45,287 --> 00:11:46,664
to face each other down.
148
00:11:56,132 --> 00:12:00,594
Their mouths can expand
three times wider than their bodies.
149
00:12:05,141 --> 00:12:07,977
And there's even more
to this jaw-dropping display.
150
00:12:10,896 --> 00:12:12,148
Invisible to us,
151
00:12:13,065 --> 00:12:15,234
their gape is enhanced
152
00:12:15,776 --> 00:12:18,446
with a striking ultraviolet warning.
153
00:12:21,031 --> 00:12:23,159
It's a secret signal of strength,
154
00:12:24,326 --> 00:12:27,204
thought to help Fringeheads judge
who is more powerful
155
00:12:28,414 --> 00:12:30,249
before the battle goes too far.
156
00:12:46,640 --> 00:12:47,683
Evicted,
157
00:12:48,058 --> 00:12:49,643
but at least unharmed.
158
00:12:50,686 --> 00:12:52,396
Now he's the one exposed.
159
00:12:54,565 --> 00:12:57,777
While the intruder
takes shelter from the outside world.
160
00:13:05,826 --> 00:13:07,661
Nature may appear abundant,
161
00:13:08,746 --> 00:13:10,623
but whether in ocean
162
00:13:10,915 --> 00:13:12,082
or on land,
163
00:13:14,502 --> 00:13:17,838
space and food have to be fought for.
164
00:13:21,926 --> 00:13:23,886
In Botswana's Okavango Delta,
165
00:13:25,137 --> 00:13:27,598
fierce competition pits carnivore...
166
00:13:29,642 --> 00:13:30,851
against carnivore.
167
00:13:31,393 --> 00:13:34,271
(WHINING AND GRUNTING)
168
00:13:39,652 --> 00:13:43,697
BENEDICT: A lone hyena
up against the power of a wild dog pack.
169
00:13:45,241 --> 00:13:46,575
She split from her clan
170
00:13:46,700 --> 00:13:48,953
to cover more ground
in the search for food.
171
00:13:50,162 --> 00:13:52,456
Now it seems a risky strategy.
172
00:13:52,748 --> 00:13:53,999
(HYENA CACKLING)
173
00:13:54,792 --> 00:13:57,002
BENEDICT:
But with an incredible immune system,
174
00:13:58,295 --> 00:14:00,756
and almost supernatural survival skills,
175
00:14:02,842 --> 00:14:04,677
she's far from the underdog.
176
00:14:09,640 --> 00:14:13,185
Her phenomenal sense of smell
can detect opportunity
177
00:14:13,894 --> 00:14:15,646
two miles away.
178
00:14:19,108 --> 00:14:20,818
(PUFFING AND GRUNTING)
179
00:14:22,111 --> 00:14:23,612
BENEDICT: Nearly six-feet-tall,
180
00:14:24,280 --> 00:14:25,739
fifteen-hundred pounds,
181
00:14:26,574 --> 00:14:27,908
one Cape buffalo
182
00:14:28,117 --> 00:14:31,120
would feed her entire clan for a week.
183
00:14:33,747 --> 00:14:35,583
(GRUNTING)
184
00:14:43,173 --> 00:14:45,134
BENEDICT:
She can't take on a buffalo alone.
185
00:14:46,552 --> 00:14:48,053
(PUFFING)
186
00:14:48,637 --> 00:14:50,973
BENEDICT:
But with primate-level intelligence,
187
00:14:51,724 --> 00:14:54,435
she can take a more strategic approach.
188
00:14:54,643 --> 00:14:55,853
(PUFFING)
189
00:14:57,938 --> 00:15:00,274
BENEDICT: Let her rivals control the game.
190
00:15:00,482 --> 00:15:01,650
(LOW GROWLING)
191
00:15:06,322 --> 00:15:07,823
BENEDICT: Up to twice her size,
192
00:15:10,576 --> 00:15:11,911
four times her weight,
193
00:15:13,495 --> 00:15:17,207
lions are a hyena's greatest enemy.
194
00:15:21,754 --> 00:15:23,088
Hunting as a pride,
195
00:15:23,589 --> 00:15:25,424
they're even more powerful.
196
00:15:28,969 --> 00:15:30,137
(PUFFING)
197
00:15:37,269 --> 00:15:39,229
BENEDICT:
But when buffalo move as a battalion
198
00:15:39,980 --> 00:15:41,857
up to 600 strong,
199
00:15:46,612 --> 00:15:48,572
even the most heavily armed hunters
200
00:15:49,740 --> 00:15:50,783
can't engage.
201
00:15:51,492 --> 00:15:53,160
(LION SNARLING)
202
00:16:04,713 --> 00:16:06,131
BENEDICT: The smartest predator...
203
00:16:07,841 --> 00:16:09,134
bides its time.
204
00:16:14,932 --> 00:16:16,308
And as night approaches...
205
00:16:16,725 --> 00:16:18,185
(CHITTERING)
206
00:16:18,519 --> 00:16:19,895
BENEDICT: ...the tables turn.
207
00:16:26,902 --> 00:16:28,028
(BIRD HOOTS)
208
00:16:29,071 --> 00:16:31,740
BENEDICT: Lions have a reflective backing
in their eyes,
209
00:16:31,907 --> 00:16:35,369
which gives them night vision
six times stronger than our own,
210
00:16:37,413 --> 00:16:40,040
revealing a world we only see
211
00:16:41,500 --> 00:16:43,335
with super-sensitive cameras.
212
00:16:46,755 --> 00:16:47,965
In the cool night,
213
00:16:48,215 --> 00:16:50,676
hunters become more active.
214
00:16:53,804 --> 00:16:55,597
And use the darkness
215
00:16:55,764 --> 00:16:57,182
to conceal their attack.
216
00:16:58,350 --> 00:16:59,685
(GRUNTING)
217
00:17:02,688 --> 00:17:04,940
BENEDICT:
Hyenas have excellent night vision, too.
218
00:17:08,736 --> 00:17:12,990
All the better to watch
as the lions do the hard work.
219
00:17:14,533 --> 00:17:15,868
(LION GROWLING)
220
00:17:23,667 --> 00:17:24,960
(LIONS GROWLING)
221
00:17:28,422 --> 00:17:29,506
BENEDICT: Now...
222
00:17:30,549 --> 00:17:32,968
time to execute her plan.
223
00:17:35,220 --> 00:17:36,722
(HOWLING)
224
00:17:37,681 --> 00:17:40,184
BENEDICT:
Bouncing her battle cry into the ground
225
00:17:41,060 --> 00:17:42,686
amplifies the sound.
226
00:17:50,486 --> 00:17:52,112
So, it reaches super-sensitive ears
227
00:17:52,946 --> 00:17:54,698
up to six miles away...
228
00:17:56,950 --> 00:17:58,869
(HOWLING AND LAUGHING)
229
00:18:01,580 --> 00:18:03,749
BENEDICT:
...and mobilizes her scattered clan.
230
00:18:11,924 --> 00:18:13,300
(LION GROWLS)
231
00:18:13,467 --> 00:18:14,593
BENEDICT: Waiting for backup,
232
00:18:15,177 --> 00:18:16,637
she plays for time.
233
00:18:21,850 --> 00:18:25,312
Harassing the lions distracts them,
and slows their feeding.
234
00:18:27,439 --> 00:18:28,774
(LION GROWLS)
235
00:18:30,567 --> 00:18:31,735
(HYENA YIPS)
236
00:18:32,444 --> 00:18:34,696
-BENEDICT: But she must be careful.
-(HYENA LAUGHING)
237
00:18:35,906 --> 00:18:38,534
BENEDICT:
One swipe of a lion paw can kill.
238
00:18:40,244 --> 00:18:42,788
Alone, she's on the defensive.
239
00:18:42,871 --> 00:18:44,123
(HYENA WHINING)
240
00:18:48,544 --> 00:18:50,921
BENEDICT:
But with 20 of her clan behind her,
241
00:18:52,756 --> 00:18:54,550
it's time to make her move.
242
00:18:55,384 --> 00:18:56,635
(HYENAS LAUGHING)
243
00:18:59,805 --> 00:19:03,684
BENEDICT: Hyenas are even more effective
team players than lions.
244
00:19:06,228 --> 00:19:07,354
(LION GROWLING)
245
00:19:17,656 --> 00:19:18,699
BENEDICT: Working together,
246
00:19:21,535 --> 00:19:23,579
the clan exhausts the pride.
247
00:19:26,999 --> 00:19:29,084
Lions know when they're beaten.
248
00:19:36,049 --> 00:19:37,634
-(HYENAS LAUGHING)
-(CRUNCHING NOISE)
249
00:19:42,014 --> 00:19:43,974
BENEDICT: With jaws that crush bones,
250
00:19:46,602 --> 00:19:48,896
and stomachs strong enough to digest them,
251
00:19:50,022 --> 00:19:51,523
in just a few hours,
252
00:19:51,982 --> 00:19:54,860
any trace of the buffalo will be gone.
253
00:20:02,784 --> 00:20:05,829
Bellies full,
the whole clan back together.
254
00:20:10,167 --> 00:20:11,543
For today at least,
255
00:20:12,252 --> 00:20:14,671
the hyenas hold the power
256
00:20:15,547 --> 00:20:17,674
in the age-old carnivore war.
257
00:20:23,639 --> 00:20:27,684
Another animal rivalry
has played out over millions of years.
258
00:20:29,728 --> 00:20:32,272
Time enough to evolve a secret weapon
259
00:20:32,606 --> 00:20:35,192
to ward off a far more powerful enemy.
260
00:20:38,445 --> 00:20:40,572
A giant Asian hornet,
261
00:20:41,698 --> 00:20:43,533
the largest wasp in the world.
262
00:20:45,327 --> 00:20:46,536
Two inches long,
263
00:20:47,120 --> 00:20:48,789
and highly carnivorous.
264
00:20:50,999 --> 00:20:52,292
(BUZZING)
265
00:20:55,712 --> 00:20:57,047
BENEDICT: Four times smaller
266
00:20:57,172 --> 00:20:59,174
-Japanese Honeybees...
-(BUZZING)
267
00:20:59,424 --> 00:21:01,051
...seem almost defenseless
268
00:21:02,302 --> 00:21:04,096
against a heavily-armed hornet.
269
00:21:07,432 --> 00:21:08,976
With a quarter-inch stinger,
270
00:21:09,685 --> 00:21:11,728
and outsized mandibles,
271
00:21:13,522 --> 00:21:16,733
she can kill 40 bees in a minute.
272
00:21:18,026 --> 00:21:19,152
(BEE SQUEALS)
273
00:21:22,072 --> 00:21:24,283
BENEDICT:
But it's not the bees she's after.
274
00:21:28,662 --> 00:21:30,205
(BUZZING)
275
00:21:32,374 --> 00:21:33,625
BENEDICT: It's their babies.
276
00:21:38,588 --> 00:21:40,048
Hidden inside this tree,
277
00:21:40,924 --> 00:21:42,634
are thousands of larvae,
278
00:21:46,179 --> 00:21:49,474
protected by 20,000 dedicated workers.
279
00:21:58,191 --> 00:22:01,695
It's too much for one hornet
to take on alone.
280
00:22:03,238 --> 00:22:05,282
So, she marks the bee's fortress
281
00:22:06,575 --> 00:22:07,868
with a chemical beacon.
282
00:22:12,998 --> 00:22:14,499
Hornets cover 60 miles a day
283
00:22:14,624 --> 00:22:15,959
looking for food.
284
00:22:17,085 --> 00:22:19,504
As soon as her kin sends the signal...
285
00:22:19,755 --> 00:22:20,964
(LOUD BUZZING)
286
00:22:21,089 --> 00:22:22,591
BENEDICT:
...they know their search is over.
287
00:22:29,931 --> 00:22:31,308
In just hours,
288
00:22:32,059 --> 00:22:34,353
a gang of these deadly assassins
289
00:22:34,519 --> 00:22:36,438
could annihilate the whole hive.
290
00:22:47,783 --> 00:22:49,451
Outer defenses breached.
291
00:22:50,994 --> 00:22:51,995
Next...
292
00:22:54,414 --> 00:22:55,499
the nursery.
293
00:22:56,166 --> 00:22:57,793
(BUZZING)
294
00:22:58,627 --> 00:23:00,879
BENEDICT:
The fate of the colony is sealed...
295
00:23:03,465 --> 00:23:04,466
Almost.
296
00:23:05,008 --> 00:23:08,095
The bees have one last chance at survival.
297
00:23:11,181 --> 00:23:13,850
A chemical alarm
compels them to move as one,
298
00:23:15,560 --> 00:23:17,062
and swarm the hornets.
299
00:23:25,570 --> 00:23:28,448
Then each bee
begins flexing its flight muscles.
300
00:23:29,991 --> 00:23:32,452
It only produces a tiny amount of heat,
301
00:23:33,912 --> 00:23:35,080
but when combined,
302
00:23:35,956 --> 00:23:37,791
it becomes a formidable force.
303
00:23:40,001 --> 00:23:43,046
Thermal cameras reveal
the core temperature is rising.
304
00:23:45,215 --> 00:23:46,800
This glowing bee ball
305
00:23:47,592 --> 00:23:48,969
is a precision weapon.
306
00:23:50,303 --> 00:23:52,806
Just one degree higher
would kill the bees.
307
00:23:54,933 --> 00:23:58,019
But exactly 117 degrees Fahrenheit
308
00:23:59,312 --> 00:24:00,730
is the perfect temperature
309
00:24:01,523 --> 00:24:04,109
to cook hornets alive.
310
00:24:09,197 --> 00:24:10,240
-(BUZZING)
-(THUD)
311
00:24:22,419 --> 00:24:24,254
BENEDICT: Both sides suffer casualties.
312
00:24:28,341 --> 00:24:31,636
But the bees' amazing ability
to work as one,
313
00:24:32,971 --> 00:24:35,474
ensures the colony lives on.
314
00:24:37,058 --> 00:24:38,393
(BUZZING)
315
00:24:46,776 --> 00:24:49,863
BENEDICT:
Strength in numbers brings protection,
316
00:24:52,032 --> 00:24:55,368
but it also brings competition
closer to home.
317
00:24:56,286 --> 00:24:57,579
(BIRDS SQUAWKING)
318
00:24:58,455 --> 00:25:00,707
BENEDICT: Bass Rock, Scotland.
319
00:25:02,792 --> 00:25:05,712
One hundred and fifty thousand Gannets,
320
00:25:07,464 --> 00:25:09,799
all nesting on one rock,
321
00:25:10,967 --> 00:25:13,178
less than one mile square.
322
00:25:13,929 --> 00:25:15,263
(SQUAWKING)
323
00:25:15,722 --> 00:25:17,265
BENEDICT: From a bird's eye view,
324
00:25:18,099 --> 00:25:20,310
it looks like life in perfect harmony.
325
00:25:23,021 --> 00:25:24,689
But it's just an illusion.
326
00:25:32,155 --> 00:25:33,240
Each nest
327
00:25:33,365 --> 00:25:35,784
is two beak lengths apart,
328
00:25:35,909 --> 00:25:36,952
for good reason.
329
00:25:38,119 --> 00:25:39,871
Any that overstep that mark,
330
00:25:40,705 --> 00:25:43,083
reveal the unseen tensions at play.
331
00:25:46,503 --> 00:25:48,505
Beaks designed to cut through water,
332
00:25:48,630 --> 00:25:51,091
and snatch fish at 60 miles an hour,
333
00:25:52,425 --> 00:25:54,970
also make vicious weapons.
334
00:25:59,140 --> 00:26:01,518
(SQUAWKING)
335
00:26:16,992 --> 00:26:20,829
BENEDICT: Fights for nesting space
can last for two hours...
336
00:26:24,040 --> 00:26:25,041
(SQUAWKING)
337
00:26:36,136 --> 00:26:37,596
BENEDICT: ...and come at a cost.
338
00:26:46,396 --> 00:26:47,522
In nature,
339
00:26:47,981 --> 00:26:50,275
peace exists on a knife-edge.
340
00:26:59,534 --> 00:27:01,202
Conflict is always hiding...
341
00:27:02,579 --> 00:27:04,456
just below the surface.
342
00:27:14,799 --> 00:27:17,052
When it comes to securing their bloodline,
343
00:27:18,136 --> 00:27:20,805
some sink to new depths.
344
00:27:22,474 --> 00:27:24,934
Lake Tanganyika in Tanzania
345
00:27:25,226 --> 00:27:27,187
is a breeding ground for conflict.
346
00:27:31,274 --> 00:27:33,360
A male burtoni cichlid
347
00:27:33,693 --> 00:27:35,737
is desperate to impress a female.
348
00:27:42,077 --> 00:27:43,828
He performs a signature dance.
349
00:27:58,718 --> 00:27:59,844
She may not look it,
350
00:28:00,637 --> 00:28:01,971
but she's charmed.
351
00:28:05,058 --> 00:28:07,352
The aquatic Romeo sweetens the deal
352
00:28:08,019 --> 00:28:09,104
with a cichlid love potion.
353
00:28:13,024 --> 00:28:15,985
A pheromone designed
to stimulate the female,
354
00:28:19,614 --> 00:28:21,616
that also travels through water,
355
00:28:23,451 --> 00:28:25,537
attracting the wrong attention.
356
00:28:28,873 --> 00:28:31,459
A local gang of cuckoo catfish.
357
00:28:33,712 --> 00:28:36,631
Their skin, covered in taste buds,
358
00:28:37,298 --> 00:28:39,426
detects the slightest hint of pheromone.
359
00:28:41,970 --> 00:28:43,513
They know it means...
360
00:28:45,390 --> 00:28:46,683
the burtonis
361
00:28:47,100 --> 00:28:48,601
are ready to spawn.
362
00:28:53,565 --> 00:28:54,774
Laying 100 eggs,
363
00:28:56,109 --> 00:28:57,902
each the size of a sesame seed,
364
00:28:58,737 --> 00:29:01,281
it's the perfect moment for an ambush.
365
00:29:09,914 --> 00:29:12,417
The catfish eat as many eggs as they can.
366
00:29:20,216 --> 00:29:21,426
And now...
367
00:29:21,843 --> 00:29:22,886
they spawn.
368
00:29:28,808 --> 00:29:30,018
Leaving behind
369
00:29:30,810 --> 00:29:33,897
tiny, ticking, time bombs.
370
00:29:37,609 --> 00:29:41,571
The burtoni mother
instinctively collects any eggs.
371
00:29:43,740 --> 00:29:44,991
She's not eating them.
372
00:29:46,367 --> 00:29:48,495
She has a special ability.
373
00:29:55,210 --> 00:29:56,878
Some cichlid super-moms
374
00:29:57,003 --> 00:29:58,338
raise their babies
375
00:29:58,546 --> 00:29:59,881
in their mouths,
376
00:30:02,675 --> 00:30:07,639
using them as mobile nurseries
to keep their young safe as they grow.
377
00:30:14,020 --> 00:30:17,524
But this burtoni cichlid
has been hijacked.
378
00:30:20,610 --> 00:30:21,945
Hidden from sight,
379
00:30:22,278 --> 00:30:23,738
inside her mouth,
380
00:30:24,739 --> 00:30:27,909
her mixed brood begins to hatch.
381
00:30:32,872 --> 00:30:34,082
And some...
382
00:30:35,166 --> 00:30:37,669
grow much faster than others.
383
00:30:40,922 --> 00:30:43,424
The oblivious burtoni is devoting time
384
00:30:43,925 --> 00:30:46,094
to raising the wrong offspring.
385
00:30:49,889 --> 00:30:51,307
Twice the size,
386
00:30:52,642 --> 00:30:54,853
ravenous baby cuckoo catfish...
387
00:30:56,354 --> 00:30:58,022
turn on the cichlid young.
388
00:31:02,110 --> 00:31:06,197
Opening jaws wide enough
to swallow their foster siblings,
389
00:31:08,032 --> 00:31:09,200
headfirst.
390
00:31:19,669 --> 00:31:21,713
The treacherous catfish babies
391
00:31:21,963 --> 00:31:24,215
soon outgrow their nursery.
392
00:31:42,650 --> 00:31:44,068
They head off alone,
393
00:31:44,485 --> 00:31:46,279
keeping a low profile,
394
00:31:46,487 --> 00:31:50,033
until ready to prey
on another unsuspecting mother.
395
00:31:52,869 --> 00:31:54,203
Leaving the burtoni
396
00:31:54,579 --> 00:31:56,789
to protect her surviving offspring,
397
00:31:59,792 --> 00:32:01,669
giving them the best chance she can
398
00:32:02,170 --> 00:32:03,963
in this dangerous world.
399
00:32:13,097 --> 00:32:16,684
In Italy's Alpine meadows,
there's one baby animal...
400
00:32:16,893 --> 00:32:17,977
(BIRDS CHIRPING)
401
00:32:18,061 --> 00:32:19,520
BENEDICT:
...who takes living with the enemy
402
00:32:20,271 --> 00:32:22,065
to a whole other level.
403
00:32:23,691 --> 00:32:26,778
Meet the intrepid Alcon blue caterpillar.
404
00:32:28,988 --> 00:32:30,365
Only two weeks old,
405
00:32:31,282 --> 00:32:33,701
and just the size of a grain of rice.
406
00:32:36,079 --> 00:32:39,916
It's about to embark
on one of the most amazing adventures
407
00:32:40,541 --> 00:32:42,710
in the whole of the natural world.
408
00:32:49,801 --> 00:32:51,010
In search of food,
409
00:32:54,222 --> 00:32:56,641
it must descend into the underworld,
410
00:32:59,435 --> 00:33:02,730
patrolled by savage armies
of Myrmecia ants.
411
00:33:05,692 --> 00:33:06,985
They can take down prey
412
00:33:07,193 --> 00:33:08,987
thousands of times their size.
413
00:33:23,918 --> 00:33:26,921
A tiny grub seems an easy target.
414
00:33:33,136 --> 00:33:36,347
Especially one that emits
an alluring scent,
415
00:33:36,889 --> 00:33:38,349
betraying its presence.
416
00:33:41,019 --> 00:33:44,313
With antennae five times more sensitive
than most other insects,
417
00:33:45,398 --> 00:33:48,276
an ant is onto it like a bloodhound.
418
00:33:57,994 --> 00:34:01,539
The caterpillar is an easy size
to carry back to base,
419
00:34:08,004 --> 00:34:10,715
where ants prepare food for their young.
420
00:34:22,477 --> 00:34:23,644
But this caterpillar
421
00:34:24,479 --> 00:34:26,439
doesn't smell like food,
422
00:34:30,193 --> 00:34:32,528
it smells like family.
423
00:34:35,615 --> 00:34:36,824
Born to deceive,
424
00:34:36,949 --> 00:34:38,743
that special caterpillar odor
425
00:34:39,327 --> 00:34:41,913
smells so similar to the ant's grubs,
426
00:34:42,830 --> 00:34:44,791
that they treat it like their own.
427
00:34:56,094 --> 00:34:57,386
And that's not all.
428
00:34:58,471 --> 00:34:59,931
To enhance its disguise,
429
00:35:00,848 --> 00:35:03,059
the caterpillar sings.
430
00:35:03,309 --> 00:35:04,852
(PULSATING NOISE)
431
00:35:10,942 --> 00:35:14,278
BENEDICT: It's copying the song
of the most important ant in the colony,
432
00:35:16,948 --> 00:35:17,990
the queen.
433
00:35:20,284 --> 00:35:21,869
Forcing dedicated workers
434
00:35:21,994 --> 00:35:23,454
to tend to its every need,
435
00:35:24,705 --> 00:35:26,499
and neglect their own.
436
00:35:30,128 --> 00:35:32,255
While the colony protects it,
437
00:35:32,797 --> 00:35:34,966
cleans it, and feeds it,
438
00:35:35,800 --> 00:35:38,678
the audacious caterpillar
can keep up the act
439
00:35:39,595 --> 00:35:42,932
for two long years.
440
00:35:45,726 --> 00:35:47,228
(PULSATING NOISE)
441
00:35:52,942 --> 00:35:56,654
BENEDICT:
Until 100 times its original weight,
442
00:35:59,031 --> 00:36:00,366
the baby blue
443
00:36:00,950 --> 00:36:03,911
is finally ready
to reveal its true colors.
444
00:36:07,790 --> 00:36:09,041
Inside the chrysalis,
445
00:36:10,626 --> 00:36:12,837
caterpillar tissue is broken down...
446
00:36:14,130 --> 00:36:15,339
and reformed.
447
00:36:33,649 --> 00:36:36,360
But, when an Alcon blue
becomes a butterfly,
448
00:36:37,695 --> 00:36:40,031
it loses its protective power.
449
00:36:43,492 --> 00:36:45,661
No longer smelling like a baby ant,
450
00:36:46,621 --> 00:36:47,955
it needs to get out...
451
00:36:48,247 --> 00:36:49,540
fast.
452
00:36:53,044 --> 00:36:56,380
Before the ants catch onto the intruder
in their midst.
453
00:37:25,826 --> 00:37:28,704
Finally, the Alcon blue
454
00:37:28,788 --> 00:37:29,956
is free.
455
00:37:36,671 --> 00:37:38,547
Over billions of years,
456
00:37:39,840 --> 00:37:42,593
living things
have evolved amazing abilities
457
00:37:42,677 --> 00:37:45,221
to compete for their place on this planet.
458
00:37:46,305 --> 00:37:48,266
But when a new rival comes along,
459
00:37:49,433 --> 00:37:51,560
it changes everything.
460
00:37:54,647 --> 00:37:56,899
The coastal waters of British Columbia
461
00:37:57,525 --> 00:38:00,486
are home to a legendary sea monster.
462
00:38:07,576 --> 00:38:10,371
One of the planet's
fastest-growing animals.
463
00:38:13,874 --> 00:38:18,754
It doubles its weight every two months
on a diet primarily of crustaceans.
464
00:38:36,981 --> 00:38:39,275
Since before the age of dinosaurs,
465
00:38:40,776 --> 00:38:43,029
the giant pacific octopus
466
00:38:43,571 --> 00:38:46,198
has been the unrivaled
crab hunter down here.
467
00:38:51,037 --> 00:38:52,621
Until now.
468
00:38:58,711 --> 00:39:00,171
We have cunning ways
469
00:39:00,296 --> 00:39:02,006
to catch seafood
470
00:39:02,340 --> 00:39:04,342
without even entering the water.
471
00:39:17,188 --> 00:39:21,650
Traps are effective
in attracting the octopus's favorite food.
472
00:39:25,446 --> 00:39:28,157
But when the world's
most intelligent invertebrate
473
00:39:28,366 --> 00:39:30,034
is presented with a challenge,
474
00:39:31,827 --> 00:39:33,079
it doesn't give up,
475
00:39:35,623 --> 00:39:36,874
it solves it.
476
00:39:40,628 --> 00:39:42,171
Two thousand suckers,
477
00:39:43,172 --> 00:39:44,465
every individual one
478
00:39:44,590 --> 00:39:46,801
with more taste receptors
than a human tongue,
479
00:39:48,427 --> 00:39:52,264
help to detect prey in the murkiest water.
480
00:40:00,898 --> 00:40:02,817
Guided by nine brains,
481
00:40:03,651 --> 00:40:04,985
one in its head,
482
00:40:05,653 --> 00:40:08,072
and a mini-brain
in each of its eight arms,
483
00:40:12,451 --> 00:40:14,120
the octopus closes in.
484
00:40:17,998 --> 00:40:20,459
A boneless skeleton made of water,
485
00:40:20,918 --> 00:40:23,879
means it can contort it's nine-foot body
486
00:40:24,130 --> 00:40:25,339
through a hole,
487
00:40:25,756 --> 00:40:27,800
the width of a grapefruit.
488
00:40:45,025 --> 00:40:46,277
Now, to dine
489
00:40:46,444 --> 00:40:48,696
before the trap is lifted.
490
00:40:55,244 --> 00:40:57,163
The trap only opens one way.
491
00:41:03,335 --> 00:41:05,045
But that's no problem
492
00:41:05,171 --> 00:41:07,882
for this extraordinary escape artist.
493
00:41:17,766 --> 00:41:18,893
We may be smart,
494
00:41:20,853 --> 00:41:24,899
but we're still discovering
animals have countless skills,
495
00:41:25,065 --> 00:41:26,400
every bit as impressive.
496
00:41:30,488 --> 00:41:31,489
Overlook them,
497
00:41:33,032 --> 00:41:34,825
and we may be left empty-handed.
498
00:41:44,835 --> 00:41:47,379
In a world full of unexpected foes,
499
00:41:51,717 --> 00:41:53,135
competition
500
00:41:53,344 --> 00:41:55,429
is evolution's ultimate driving force.
501
00:41:57,973 --> 00:42:01,894
The secret behind the incredible diversity
of life on earth,
502
00:42:05,981 --> 00:42:08,776
and the most extraordinary animal powers.
503
00:42:11,737 --> 00:42:13,197
If you think you know nature,
504
00:42:14,698 --> 00:42:15,783
think again.
505
00:42:17,326 --> 00:42:19,328
(THEME MUSIC PLAYING)