A new study finds a surprising number of fish, birds and mammals in the oceans 100 and 1,000 years ago. Can this information help regulators slow the decline of important marine animals?

The essential skills of bird migration are orientation — knowing north from south, and east from west — and navigation, having some sort of “map” to establish the location you’re aiming for, says Stanley Temple, emeritus professor of conservation.
Birds usually orient themselves by observing the sun and the stars – although some can also sense [...]

West Nile virus attacks birds, but how bad will the human damage be? Where do these viruses come from, how do birds spread them, and how can we protect ourselves?

Tyrannosaurus rex was no sprinter, new biomechanical study finds.