Home
Anmelden
Registrieren
Lerninhalte
Loading...
Hörübung
Hörübung
/
Video
/
National Geographic
/
Tadpoles vs Wasps | BBC Earth
Tadpoles vs Wasps | BBC Earth
Lernmodus auswählen:
Untertitel ansehen
Wort wählen
Wort umschreiben
Highlight:
3000 Oxford Words
4000 IELTS Words
5000 Oxford Words
3000 Common Words
1000 TOEIC Words
5000 TOEFL Words
Untertitel (34)
0:01
As the gradient slackens, the rivers
0:04
slow and spread.
0:12
Down here, the forests are even more
0:14
luxuriant.
0:25
It's so wet that some tree frogs don't
0:28
need to lay their eggs in water.
0:35
Instead, they stick them to the
0:38
underside of leaves, well out of reach
0:40
of hungry fish.
0:43
In less than a week, they've already
0:45
developed into tadpoles.
0:48
They mature very quickly.
0:53
But not quite fast enough in this case.
1:05
The most unlikely of predators has
1:07
stumbled on these clumps of spawn.
1:12
>> [snoring]
1:14
>> The protective jelly merely slows down
1:17
the wasp's smash and grab tactics.
1:36
The wasps return again and again,
1:39
chewing up tadpoles before taking them
1:42
back to their own nest.
1:57
And yet, the
1:58
aren't entirely helpless.
2:05
By the time they're only 5 days old,
2:07
they're already able to react to the
2:09
vibrations created by the hunting wasps.
2:21
They hatch prematurely when stressed
2:23
like this, and as the jelly liquefies,
2:26
the tadpoles dribble down to the leaf
2:28
tip and into the water below.
2:33
They may be underdeveloped, but they can
2:36
swim well enough to give themselves at
2:38
least a fighting chance away from the
2:40
jaws of the wasps circling above.
