From Leader to Outcast ― Cheetah, Kenya

It pays to have friends, the saying goes. The Darwin team tracked a coalition of five male cheetahs for an extended period, amazed at the unity and teamwork shown by these usually solitary big cats. But cracks soon formed in the hierarchy. The leader, ruling by intimidation and force, finally pushes too hard, incurring the wrath of his fellow members. He's left injured and abandoned, to face the grim reality of survival on the savanna alone. But his resolve in the face of defeat may inspire you!