Lions are large carnivorous mammals that live in grasslands and savannas in Africa, measuring around 10 feet long and weighing 550 pounds with brownish-tanish fur. They hunt prey such as wildebeest, warthogs, and buffalo using their excellent eyesight and sense of smell, and can run up to 36 miles per hour. Lions live in prides and will eat meat from their kills, typically being most active at night, and have a lifespan of 10-15 years in the wild.