DAVID AUBREY / SCIENCE PHOTO LIBRARY DAVID AUBREY / SCIENCE PHOTO LIBRARY
Red-eyed tree frogs (Agalychnis callidryas) clinging to a branch. The red eyes of these frogs, which are native to the jungles of Central America, are thought to be used to startle potential predators. They live off a diet of small invertebrates, which they find mainly in the trees. Their long thin orange toes have adapted pads used to provide grip on trees and leaves. During the day they hide, clinging to the underside of leaves and only emerging to feed at night. The females, which are larger than males, can reach a length of 7 centimetres.
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