Cheetah Animals

The cheetah is Mammal animals . The cheetah is very large and  world's fastest land animal, the cheetah can go from 0 to 65 km (40 mi) per hour in three strides, with a single stride covering 7-8 meters (23-26 feet). Cheetahs can reach full speed 110 km (70 mi) per hour in seconds. They are the only cats who have nonretractile claws. This gives them better traction, and helps maintain their footing while they run. Cheetahs are one of the few big cats who can purr. They also make other unusual sounds such as chirping, yelping, and bleating. Females live alone except when they are raising cubs. Males live in coalitions of two to five members.The cheetah has unusually low genetic variability. This is accompanied by a very low sperm count, motility, and deformed flagella.[8] Skin grafts between unrelated cheetahs illustrate the former point, in that there is no rejection of the donor skin. It is thought that the species went through a prolonged period of inbreeding following a genetic bottleneck during the last ice age. This suggests that genetic monomorphism did not prevent the cheetah from flourishing across two continents for thousands of years.The cheetah likely evolved in Africa during the Miocene epoch (26 million to 7.5 million years ago), before migrating to Asia. Recent research has placed the last common ancestor of all existing populations as living in Asia 11 million years ago, which may lead to revision and refinement of existing ideas about cheetah evolution.The now-extinct species include: Acinonyx pardinensis (Pliocene epoch), much larger than the modern cheetah and found in Europe, India, and China; Acinonyx intermedius (mid-Pleistocene period), found over the same range. The extinct genus Miracinonyx was extremely cheetah-like, but recent DNA analysis has shown that Miracinonyx inexpectatus, Miracinonyx studeri, and Miracinonyx trumani (early to late Pleistocene epoch), found in North America and called the "North American cheetah" are not true cheetahs, instead being close relatives to the cougar.