Giant tadpole fossil is the oldest ever discovered
Scientists have discovered the oldest-known fossil of a tadpole, which lived among the Jurassic dinosaurs 160 million years ...
The oldest tadpole fossil ever has been found—and it’s a big one
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.