Animals in any environment have many essentials for survival. Two are obvious: food and water. Many don’t consider other essentials that are very much like the needs humans have. Those include cover ...

Animal migration has fascinated humans for millennia. And for good reason: Some of the most astonishing feats of endurance are performed by long-distance migrants, such as the nine-day non-stop flight ...

Migrating animals have for a long time been tracked by recapturing tagged individuals. More recently, radio-telemetry, which requires an observer to physically follow the tagged animal, has been used.