PETER CHADWICK / SCIENCE PHOTO LIBRARY PETER CHADWICK / SCIENCE PHOTO LIBRARY
Male ground agama lizard (Agama aculeata) displaying on a branch. The dominant male, or cock, ground agama lizard defends his territory against intruders and subordinate males by displaying on a prominent branch. This solitary lizard inhabits savannah and arid areas of Africa. It feeds on ants. Photographed in the Kalahari Desert, South Africa.
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