Thousands of Migrating Animals Are Forced to Cross This Dangerous Highway Every Year ...

Animals that migrate: Every year, as the days shorten and the temperature drops, billions of animals that migrate embark on one of nature's greatest spectacles: the winter migration. This massive ...

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 ...