One of the greatest transitions in evolutionary history was the emergence of tetrapods, or four-legged vertebrates, onto land. By about 340 million years ago, fins had become fingers and limbs, ...

The Quadski from Gibbs Sports Amphibians Inc., Auburn Hills, Mich., can travel 45 mph over land or water, and transitions between the two modes at the push of a button. The 1,180-lb (dry) amphibian ...

A red salamander crawls over some leaves and twigs on the forest floor. THORNHURST TWP. — North Branch Land Trust invites naturalist enthusiasts to an Amphibian Migration Watch, from 7:30 to 8:30 p.m.

The major threats to amphibian species include pandemic disease and changes in climate and in land use. A study of the global distributions of these threats predicts that they will affect most ...

Amphibians were well suited to life on land, although they nearly always needed to return to the water to lay their eggs and reproduce. Since their appearance, this family has adapted successfully to ...