Big cats are carnivores in the Felidae family, mainly lions, tigers, leopards, and jaguars (*Panthera* genus). Cheetahs, from the *Acinonyx* genus, differ: they can't roar, have semi-retractable claws, and are built for speed, not strength. Reaching up to 75 mph, cheetahs hunt by sprinting, unlike other big cats that rely on stealth and power.