Peringuey's adder (Bitis peringueyi) burying itself in sand. This venomous sidewinding adder, found in the Namib Desert of Namibia and Angola, hunts desert lizards and other small animals. It buries itself in the sand and uses its tail to attract prey. Its sidewinding action allows it to move across hot sand without absorbing too much heat. Photographed in Namibia, Southern Africa.