Elephants are large mammals of the family Elephantine and the order Proboscis. Traditionally, two species were known, the African elephant (Periodontal African) and the Asian elephant (Elephants maxims). However, recent evidence suggests that African bush elephants and African forest elephants are separate species (L. African and L. cyclist respectively). Elephants are scattered throughout sub-Saharan Africa, South and Southeast Asia. They are the only surviving proboscis, although several extinct species have been identified, including the elephants' close relatives, the mammoths. Elephants are the largest living terrestrial animals; male African elephants can reach a height of 4 m (13 ft) and weigh as much as 7,000 kg (15,000 lb). These animals have several distinctive features, including a long proboscis or trunk that they use for numerous purposes, particularly for grasping objects. The ear flaps are particularly large and help to control the temperature of their massive bodies. Their incisors grow into large tusks, which serve as tools for moving objects and digging, as well as weapons for fighting. African elephants have larger ears and concave backs while Asian elephants have smaller ears and a convex back.