Acinonychinae

Acinonychinae is a subfamily of the family Felidae, commonly known as cats. This subfamily contains only one extant species, the cheetah, Acinonyx jubatus. Cheetahs are distinct from other large cats due to their semi-retractile claws and their incredibly fast speed, which they use for hunting. They are found in parts of Africa and a small population in Iran. Historically, the subfamily might have included other species, but current scientific consensus places only the cheetah within Acinonychinae. The genus Acinonyx is characterized by a slender build, a deep chest, and a long tail used for balance. Their diet primarily consists of small to medium-sized ungulates. Cheetahs are known for their unique hunting technique, relying on a burst of speed rather than stealth or power. Conservation efforts are in place to protect the dwindling cheetah populations, which face threats from habitat loss, human-wildlife conflict, and a lack of genetic diversity. The subfamily's evolutionary history suggests a divergence from other felids millions of years ago, with specific adaptations for their cursorial lifestyle.