Researchers thought leaf-toed geckos were locally extinct on Rábida Island, so they were thrilled to find several of the ...

There's something highly unique about these odd-looking creatures: they're immune to cancer. The mole rat was one of the first entries into photographer Joel Sartore's Photo Ark, which now has ...

NOVA “The Rise of the Mammals” Wednesday, July 23 at 10:00 pm Sixty-six million years ago, an asteroid wiped out the dinosaurs in a fiery global catastrophe. But we... Read More ...

A dwarf elephant the size of a Shetland pony once roamed the Mediterranean island of Cyprus. In the West Indies, a giant rat-like rodent tipped the scales at more than 400 pounds (180 kg ...