The Kalahari lion is a sub-species of African lion specially adapted to its desert environment. Physically, they have longer legs and leaner bodies, and males have much darker manes. They are built to have more endurance, and they need it. Living in smaller groups, these lions lay claim to larger territories and dine on smaller prey, from antelope to porcupines to birds. The Kalahari lions have a stronger resistance to thirst — they can go for two weeks without drinking water, relying on their prey for their moisture needs. They cool down their blood by panting, and sweat through the pads of their paws.