acinonyx jubatus alert big-cats black spots carnivore carnivorous cat cheetah cheetahs distinctive distinguishing features fast felid feline fur mammal non-retractable claws reclining relaxed runner skin speed speed-bursts speedy spots spotted sprinter tamable tamed variegated coat big cats acinonyx-jubatus african animal art artistic big-cat brown colors colours distinguishing-features eye-contact eye-levels face fauna features focus head paint painted painting Rendered snout variegated-coat wildlife illustration lined lines