A browsing, ruminant mammal belonging to the family Cervidae, typically with long, powerful legs and a compact body. Except in Chinese water deer, all males, and also female caribou, bear antlers used in competition for mates that grow and are shed annually; these are simple in some species but in most they are branched and in some species large and complex. Deer vary in size from the pudu, weighing about 9 kg, to the moose at 800 kg. There are 47 species found in forest, grassland, scrubland, and wetland habitats and native to the New World, Eurasia, and one species in North Africa, but introduced in Australia and New Zealand.