Tadpoles vs Wasps | BBC Earth

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0:01As the gradient slackens, the rivers

0:04slow and spread.

0:12Down here, the forests are even more

0:14luxuriant.

0:25It's so wet that some tree frogs don't

0:28need to lay their eggs in water.

0:35Instead, they stick them to the

0:38underside of leaves, well out of reach

0:40of hungry fish.

0:43In less than a week, they've already

0:45developed into tadpoles.

0:48They mature very quickly.

0:53But not quite fast enough in this case.

1:05The most unlikely of predators has

1:07stumbled on these clumps of spawn.

1:12>> [snoring]

1:14>> The protective jelly merely slows down

1:17the wasp's smash and grab tactics.

1:36The wasps return again and again,

1:39chewing up tadpoles before taking them

1:42back to their own nest.

1:57And yet, the

1:58aren't entirely helpless.

2:05By the time they're only 5 days old,

2:07they're already able to react to the

2:09vibrations created by the hunting wasps.

2:21They hatch prematurely when stressed

2:23like this, and as the jelly liquefies,

2:26the tadpoles dribble down to the leaf

2:28tip and into the water below.

2:33They may be underdeveloped, but they can

2:36swim well enough to give themselves at

2:38least a fighting chance away from the

2:40jaws of the wasps circling above.

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