In a scene from the 2013 BBC documentary series Africa, a giraffe approaches from a distance, ambling across the golden sand of the Kalahari. “A young male,” narrator David Attenborough announces. The newcomer heads toward another giraffe, Western showdown music warbling on the soundtrack. “The old bull won’t tolerate a rival,” Attenborough warns, as the giraffes begin to clash. “Pushing and shoving, they size each other up. The young rival seems to think he has a chance and attacks.” Moments later he slams his powerful neck into the old male’s, and the fight is on—a bloody battle for territory. “The stakes are high,” Attenborough explains. “To lose means exile in the desert.”