CLAY COLEMAN / SCIENCE PHOTO LIBRARY CLAY COLEMAN / SCIENCE PHOTO LIBRARY
Male brown anole (Anolis sagrei) with an extended dewlap. Males extend this piece of skin to either threaten other males or predators, or to attract a mate. The brown anole is native to the Cuba and the Bahamas. It began to colonise Florida in the late 1950s. Photographed in Homosassa, Florida, USA.
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