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Meller's Chameleon on a Branch
Photograph by Marian Bacon/Animals Animals—Earth Scenes
Meller's chameleons are also called giant one-horned chameleons because of their large size and the small horn protruding from the front of their snouts.
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Three-Horned Chameleon
Photograph by Michael Nichols
Chameleons' eyelids are fused together, leaving only a pinhole open over the pupil. They are able to move each eye independent of the other, but will focus both eyes in the same direction when they spot prey.
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Flap-Necked Chameleon
Photograph by Michael Nichols
Famous for changing the color of their skin, chameleons are more like mood rings, with their color changes reflecting mood, temperature, light, and other stimuli.
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Panther Chameleon
Photograph by Maria Stenzel
A panther chameleon clings to a branch with his tightly curled tail in hopes that lurking predators will mistake him for part of the tree.
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Chameleon Traversing a Branch
Photograph by Michael Nichols
Chameleons have two finger-like appendages on each foot, and each foot has five claws—two on one "toe" and three on the other.
Animals A-Z
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National Geographic Magazine
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The Beauty of Insect Eggs
Engineered for survival, insect eggs hang on and hatch wherever their parents deposit them.
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Eels Photo Gallery
The freshwater eel is one of the few fishes to spawn in the ocean and spend its adulthood in lakes, rivers, and estuaries.