Lion Pet

Pleistocene
Several additional subspecies of lion existed in prehistoric times:
• P. l. atrox, known as the American Lion or American cave lion, was abundant in the Americas from Canada to Peru in the Pleistocene Epoch until about 10,000 years ago. This form as well as the cave lion sometimes are considered to represent separate species, but recent phylogenetic studies suggest that they are in fact, subspecies of the lion (Panthera leo). One of the largest lion subspecies to have existed, its body length is estimated to have been 1.6–2.5 m (5–8 ft).
• P. l. fossilis, known as the Early Middle Pleistocene European cave lion, flourished about 500,000 years ago; fossils have been recovered from Germany and Italy. It was larger than today's African lions, reaching the American cave lion in size