I n 2003, scientists described a new family of frogs – the first time such a discovery had been made among the anurans in around 70 years. Their prize was a weird one, a purple frog described as ...

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Many other frog species camouflage themselves in the wild, but the poison dart frog uses its brightly colored skin to warn predators that it is unfit to eat. The frog's skin secretes a dangerous ...