Of all the strange and marvelous appendages to arise in animal anatomy, the frog tongue is one of the few to meet the requirements of a Marvel Comics superpower: the “X-Men” villain nam… ...

But the frog’s tongue is “one of the softest bio tissues known,” she says, similar to the squishiness of brain tissue and a whole 10 times softer than the human tongue.

Frog Spit Behaves Like Bug-Catching Ketchup The amphibians' saliva is what's known as a "shear-thinning fluid," like ketchup—sometimes thick, sometimes thin and flowing. Christopher Intagliata ...

The trick turned out to be frog spit, a Georgia Tech researcher discovered. ... German researchers observed horned frogs catching bugs with strikes that clocked in at 40 milliseconds.