Nature’s most dazzling colors can be strangely rare. Walk through a park or forest and you see greens, yellows and reds that ...

Bees use polarized sunlight scattered by the atmosphere in order to navigate; they always know where the sun is, even if ...

visible in the ultraviolet range, something that many insects can detect. Humans, on the other hand, cannot see these signatures with the naked eye, but instead must use special equipment.