Surprise discovery contradicts theories about anatomy exclusive to land animals

Canadian researchers have discovered a new species of Triassic coelacanth, a fish presumed extinct until a population was found off the coast of Africa in the 1930s, while digging through a trove of museum fossils.

Here's an anatomical packing list for making that historic trip from water to land circa 370 million years ago

For 300 million years, they were the ultimate survivors.

Millions of years ago, the creatures who would become the ancestors of all life, animals and humans alike, were simple, sometimes composed of individual cells.