TOM MCHUGH / SCIENCE PHOTO LIBRARY TOM MCHUGH / SCIENCE PHOTO LIBRARY
Golden poison frog. Close-up of a golden poison, or poison dart, frog (Phyllobates terribilis). This is one of the most toxic of all the poisonous frogs, the poisons being secreted by glands in the skin. Its bright colouration serves to warn predators of this trait. Local people in its habitat have used its poison for centuries to tip the blowdarts with which they hunt. This frog is an insectivore, catching insects with its sticky retractable tongue. Unusually for a frog it is a social animal, and lives in large groups. It may reach a length of almost five centimetres.
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