A male lion will usually sleep 18 to 20 hours per day. However, after eating a big meal, it is possible for a lion to sleep a full 24 hours. Female lions usually sleep 15 to 18 hours per day. More »

Despite the common phrase "lion's den," lions actually do not den and instead sleep on the open savanna. Lions are at the top of the food chain, so they experience no predation pressures requiring them to den. Some Egypt... More »

The mountain lion is adaptable to many environments and can be found in low-lying swamps or on high mountain slopes. They do not build dens, preferring to sleep and rest in caves or dense brush. More »

During the mating season, lions can mate anywhere from 20 to 40 times in a day for several days straight. Male lions will check whether the lionesses are in heat by sniffing their reproductive organs. More »

Adult lions can grow to be 6 to 8 feet tall. Male lions are slightly larger than the females who typically grow to heights of 5 to 6 feet. More »

Tigers are the largest species of cat in the world, outranking both African and Asiatic lions. Among tiger subspecies, the Siberian tiger is the largest, reaching nearly 11 feet in length and weighing 660 pounds. More »

Lions do not have many natural predators; humans, other lions and hyenas are sometimes known to kill lions. The lion is referred to as the king of the jungle, but hyenas will sometimes kill them when they are injured and... More »