Tree-climbing lions, Southern Serengeti, Tanzania

It is believed that these lions climb trees in order to get away from tsetse flies (large flies with a nasty bite). Lions also tend to climb tees to enjoy a cool breeze. Tree-climbing lions aren't very common. While cubs climb trees for fun, adult lions rarely do, except in some Tanzanian parks and Ugandan parks. It's nice to think of it as a cultural thing.