The Lost World of Amphibians: 20 Extinct Species That Shaped Evolution
Amphibians weren’t always the small, slippery creatures we see today. Millions of years ago, they were giants, hunters, and survivors of a world far more dangerous than our own. Some had boomerang-shaped heads, others looked like crocodiles, and a few were so massive they could swallow smaller creatures whole. These lost giants once ruled prehistoric …