The male’s mating call, a two-note, high-pitched “co-qui,” gives the coqui frog its name. With no predators, the frogs from Puerto Rico can proliferate and eat large quantities of native ...

Hanging above the water, these red-eyed tree frog tadpoles are easy targets for wasps. However, at just five days old, they ...

But frogs are also food for bigger animals ... that they have evolved a variety of ways to defend themselves from attack. They secrete a variety of defensive chemicals that bathe their skins ...