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The Biggest Insect Emergence on the Planet | 20 Years of Planet Earth | BBC Earth
The Biggest Insect Emergence on the Planet | 20 Years of Planet Earth | BBC Earth
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자막 (40)
0:00
The adults are clumsy and very edible.
0:10
After 17 years underground,
0:13
creatures are stirring.
0:21
The nymphs of the periodical cicada have
0:25
been biting their time. Now they march
0:28
like zombies towards the nearest tree
0:31
and start to climb.
0:41
At first there are merely thousands, but
0:44
soon more than a billion swarm all over
0:47
the forest. The biggest insect emergence
0:51
on the planet is underway.
1:23
They invade the upper branches where
1:25
they climb out of their external
1:27
skeletons and assume their adult winged
1:31
form.
1:40
At first they're white and soft, but
1:43
they have until dawn to complete their
1:45
transformation.
2:00
After an absence of 17 years, the forest
2:04
is now overrun by cicardas.
2:14
The adults are clumsy and very edible.
2:28
For turtles and other inhabitants of the
2:30
forest, this is a feast they're lucky to
2:33
see once in their lifetime, and they
2:35
gorge themselves while they can.
2:51
Times have never been so good. The
2:53
cicardas have no defenses and virtually
2:56
offer themselves to their attackers.
3:09
The stream of insects is so relentless
3:12
that soon all the predators are full to
3:14
the point of bursting.
3:27
And still the cicardas come with the
3:30
predators overwhelmed. The survivors can
3:33
achieve their purpose.
3:38
After mating, the adults lay their eggs
3:42
and then their job is done. In just a
3:45
few days, they will all die and the
3:47
forest will fall silent. The cicardas
3:50
here will not be heard again for another
3:54
17 years.
