Researchers have newly described three extremely rare species of toad that leapfrog over the egg-to-tadpole stage and give birth to toadlets.

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 ...

TUCSON, Ariz.— The Center for Biological Diversity filed a formal notice today of its intent to sue the U.S. Fish and Wildlife Service for failing to protect the critically imperiled Railroad Valley ...