I photographed this bull Cape buffalo in Tanzania’s Serengeti National Park.

The Cape buffalo of Africa is one of the world’s largest and strongest land mammals. It can toss full-grown lions with a shake of its head and horns, and they are not afraid to attack lions if their herd is threatened. In Tanzania, where I shot this, I was told they are among the most dangerous land animals in Africa. This enormous male bull looks like it had tussled before with a lion, and clearly it did not lose that battle. I would hate to cross their path if they felt threatened. (Click on the photograph to see a larger picture on a separate picture page.)