The Mesozoic wasn’t just the age of dinosaurs. Reptiles of all sorts thrived through the Triassic, Jurassic and Cretaceous at the same time our favorite dinosaurs were roaming on land. Long-necked ...

The Earth is full of remarkable species, and the wood frog (Lithobates sylvaticus) is certainly one of them. This small critter is the only amphibian on the planet that lives north of the Arctic ...

A list about evolution would be incomplete without the platypus, that furry denizen of Australian waterways. The mammal has a bevy of perplexing traits—it lays eggs, has a beaver-like paddle tail, ...