“In a unique way among the paradoxes of ancient logic, the Crocodile Paradox can be reformulated as a game with four possible ...

Long thought extinct, sebecid fossils found in the Dominican Republic are rewriting what we know about ancient predators in ...

A new study offers the first detailed look at king cobra combat. Video evidence reveals that when these snakes joust there is no venom—just a ritualized fight for mating rights.

Alongside other cartilaginous fishes like rays and chimaera, they sit within the ancient and successful clade known as ...

We may have gotten the evolutionary origins of the echidna backward, as new research suggests its ancestors probably lived in ...