A 161 million-year-old fossil, linked to a line of extinct frog-like amphibians, is the oldest tadpole ever found. By Asher Elbein The metamorphosis of a frog from baby to adult is one of nature’s ...

An artist depicts the tadpole and frog individuals of the Notobatrachus degiustoi species. The oldest known tadpole fossil, which belongs to this species, was found in the Patagonia region of ...

Tadpoles are to frogs as oranges are to apples. They are so very different, University of Cincinnati Professor Daniel Buchholz said. In his biology lab, he and his students are using a National ...

The word ‘metamorphosis’ comes from the Greek words ‘meta’ meaning change, ‘morph’ which refers to shape, and ‘osis’ meaning a process. Metamorphosis is the process of changing the shape of the body.

Meet the lemur leaf frog! These attractive amphibians — best known for their big, beautiful eyes — are critically endangered. The good news? Reptile Discovery Center keepers at the Smithsonian’s ...