The cheetah (Acinonyx jubatus) is a big cat in the subfamily Felinae that inhabits most of Africa and parts of Iran. The cheetah can run as fast as 109.4 to 120.7 km/h (68.0 to 75.0 mph), faster than any other land animal. It covers distances up to 500 m (1,640 ft) in short bursts, and can accelerate from 0 to 96 km/h (0 to 60 mph) in three seconds. Cheetahs are notable for adaptations in the paws as they are one of the few felids with only semi-retractable claws. Cheetahs are also the biggest cats those can “purr”. While the cheetah can not roar but the other big cats can, the latter can not purr but the cheetah can.