Deep within the dense foliage of Papua New Guinea lives the world’s smallest vertebrate. Meet Paedophryne amauensis, a ...

You’re looking at images of the world’s two smallest frog species — Paedophryne dekot (the top two) and P. verrucosa (bottom two) — recently discovered by researchers in southeastern New Guinea.

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 ...

Brachycephalus pulex are now the smallest known vertebrates (Credit: Renato Gaiga) Brachycephalus pulex might be the title holders for world's smallest vertebrate. But it's not easy being green – or ...

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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 ...