acinonyx jubatus african big big cats captive captivity cared-for carnivore cat distinctive enclosure fast fastest fauna feline hunter mammal markings roam roaming roaming space solitary speed well-fed wild-life alert big-cats black spots carnivorous cheetah cheetahs distinguishing features felid fur non-retractable claws reclining relaxed runner skin speed-bursts speedy spots spotted sprinter tamable tamed variegated coat acinonyx-jubatus animal art artistic big-cat brown colors colours distinguishing-features eye-contact eye-levels face features focus head paint painted painting Rendered snout variegated-coat wildlife illustration lined lines