Some wasps and frogs evolved similar chemicals that cause pain in predators, even though the species are not closely related.

Certain species of wasps and frogs share a pain and inflammation peptide similar to one found in vertebrates to help defend against predators—a discovery that contributes to a shifting view of how ...

A team of herpetologists at the Universidade Estadual de Santa Cruz just reported that a tiny frog found only in a hilltop forest in southern Bahia, Brazil, may be the smallest vertebrate in the world ...

A tiny Brazilian frog about the size of a pea may threaten the current record-holder for the world’s smallest vertebrate. The flea toad Brachycephalus pulex, which is actually a frog species, was ...

The new species of nurse frog lives among leaf-litter in southern Brazilian Amazonia, researchers said. J.R.D. Souza via Vertebrate Zoology Scientists recently identified a new species living among ...

Deep in the forests of Haiti lives the blue-eyed La Hotte glanded frog (Eleutherodactylus glandulifer), which once went 20 years without being observed by scientists. It belongs to a diverse genus ...