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Scientists have newly described three extraordinary species of tree toad that leapfrog over the egg-to-tadpole stage. The females give birth on land to dozens of toadlets, each measuring just a few ...

BUENOS AIRES (Reuters) - Scientists in Argentina have discovered excellently preserved fossil remains of the oldest-known tadpole, the larval stage of a large frog species that lived alongside ...

Call it a grand-phibian. Scientists have unearthed a fossil of the world’s oldest tadpole in Argentina — a shock finding that could alter our understanding of amphibian evolution, experts say.

For years, we've been asking, "Which came first: the chicken or the egg?" Maybe what we should have been asking is, "Which came first: the frog or... The oldest tadpole ever found is 161 million years ...