Trichobatrachus robustus - The Hairy Frog and his bone-breaking claws of doom
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Is the WTF aspect of this frog that he is hairy?
No. (Well, maybe a little -- those hairlike strands of skin and artery are thought to help them take in more oxygen while they're caring for their babies.)
What makes Mr Hairy Frog WTF is that, when threatened, he is capable of BREAKING HIS OWN BONES IN ORDER TO PUNCH CLAWS THROUGH HIS SKIN.
Detail pics of claws below cut:
Apparently there are other clawed frogs out there (with their claws more resembling those of a cat), but the Hairy Frog's claws and method of deploying and retracting them appear to be rather unique.
In Cameroon, where humans eat the frogs roasted, they're hunted with spears and machetes to avoid getting spiked. Understandable.
Hairy Frog has requested that he be played in the movie of his life by Hugh Jackman.