Horror frog

More throwback movie references: Remember how Riggs in Lethal Weapon is always throwing his shoulder out to get out of a jam? He’s got nothing on the “horror frog”:

“Amphibian horror” isn’t a movie genre, but on this evidence perhaps it should be. Harvard biologists have described a bizarre, hairy frog with cat-like extendable claws.

Trichobatrachus robustus actively breaks its own bones to produce claws that puncture their way out of the frog’s toe pads, probably when it is threatened.