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Humans have been navigating by the stars since ancient times, but a small yet diverse group of species also use the night sky to get around. Some recognize the movement of star patterns, while others get their bearings via particularly bright individual stars . A few even plot their course via our galaxy , the Milky Way . From dung beetles to seals, steering by the stars is a critical skill, as it aids them in migrating, finding food, or searching out mates. Even a creature as small as a dung beetle, with a brain the size of a grain of rice, can gaze up at the starry night and decide where to go. ( See five more amazing animal navigators .). “I find this extremely fascinating,” says Ma... Tout l'article

27 fevrier


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