The discovery in Patagonia shows that frogs have had a tadpole stage for at least 160 million years. Here’s how the ancient frogs compare to those of today. Tadpoles and adults of the extinct ...

Scientists have discovered the oldest-known fossil of a tadpole, which lived among the Jurassic dinosaurs 160 million years ...

Scientists have discovered how to identify frogs from their tadpoles in a step towards saving amphibians from extinction. Conservation efforts to protect the breeding grounds of endangered frogs ...

Fossils of the ancient frog Notobatrachus degiustoi push the known tadpole timeline back more than 30 million years.