
The world’s first ‘worm’ dating back 220 million years has been unearthed in Arizona.
It’s a ‘missing link’ in evolution that sheds fresh light on the origins of amphibians.

The world’s first ‘worm’ dating back 220 million years has been unearthed in Arizona.
It’s a ‘missing link’ in evolution that sheds fresh light on the origins of amphibians.