"Due to the cheetah’s specialisation for speed, it has developed many morphological and physiological adaptations. For , it has a small head, lightweight and thinly-boned skull, flat face, and a reduced length of muzzle that allows the large eyes to be positioned for maximum binocular vision, enlarged nostrils, and extensive air-filled sinuses (Ewer 1973). Its body is narrow and lightweight with long, slender feet and legs and specialised muscles, which act, simultaneously, for high acceleration and allow for greater swing to the limbs (Hildebrand 1959, Hildebrand 1961, Neff 1983). The cheetah is the only cat with short, blunt claws, which lack skin sheaths, making the claws semi-retractable, thus providing added traction like a sprinter’s cleats (Ewer 1973)."
January 1, 1970
https://en.wikiquote.org/wiki/Cheetahs