Frogs shake it like a polaroid picture…

In yet another late-night bout of animal voyeurism, male red-eyed tree frogs have been discovered to shake their rumps when entering into a show of dominance with another male.

read a National geographic release about the strange behavior here.

An excerpt:

No, they’re not shivering. And no, they’re not getting shocked. These red-eyed tree frogs in Panama have been recorded shaking their behinds to send a message.

This shaking, known as tremulation, is a form of communication between male tree frogs.

The males are tremulating to establish which is the dominant male. They’re claiming territory for their ‘calling area’ where they spend the night calling for a female mate.

Sometimes, the shaking leads to wrestling among males… and maybe even more shaking, until the loser retreats.

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On the other hand, my aimless poking around on the interwebs has led to my discovery of other frog related items including videos of the Surinam toad whose offspring are born out of pockets in the toad’s back. it’s sort of distressing to watch:

And also that Germany and Denmark suffered a strange bout of exploding toads in 2005. Who knew?

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