This is the skull of a cougar (American Lion). The cougar (Panthera leo atrix) is an extinct species of feline, one of the largest known. They lived during the Pleistocene (Pleistocene) and became extinct about 10,000 years ago. The cougar was found primarily in North America, from Alaska to Mexico, and was a predator at the top of the North American food chain at the time. As pure carnivores, their tooth structure is ideal for piercing and tearing meat, and their canines are large.

Lions are large ferocious beasts of the Carnivorous Order, Felidae family, and Panther genus. Its body is flexible, strong, and has a thick chest; Having a short and hard skull and jaw, making it easy to hunt prey; Lions have many hard, inward curved protrusions on their tongues, which are beneficial for feeding and grooming their fur; Adult male lions weigh more than their female counterparts, are larger in appearance, and have long mane. Mainly distributed in the African savannah and India. It has a large body shape and cooperates in hunting, making it the only social type among felines. Lions have clear division of labor, with the female lion's task being to reproduce offspring and search for food, while the male lion is responsible for protecting the entire lion pack.