It started as a good day. As usual, Kevin Langergraber got up at dawn to follow and observe the chimpanzees of Ngogo, in Uganda’s Kibale National Park. An anthropologist from Arizona State University, he has been studying the group for 19 summers. This year, food has been scarce, and so have the chimps. But yesterday Langergraber found a group of 30 adults playing and relaxing, with infants crawling all over them. “It was just me and 30 chimps,” he says. “I was so happy. And it just turned so quickly.”
Later in the day, the chimps were on the move, traversing a familiar route between two stretches of forest. Shortly after they reentered the trees, Langergraber, who was right behind them, heard one of them scream. He thought they had stumbled onto a buffalo or an elephant, but when he ran up to them, he was shocked to see two people. Poachers.
Langergraber ran at them, shouting. One angry scientist is hardly a threat, but he could have had more people, or armed rangers, behind him. The poachers fled. Their dogs didn’t.
The poachers had brought a few dozen hunting dogs. Half of them were mauling a female chimp named Kidman and her 25-day-old infant. Another small pack was tearing at Jumbo, Kidman’s six-year-old son. Langergraber ran up and started kicking the dogs, to no avail. Then he realized that a spear was sticking out of Kidman’s back. He pulled it out and started spearing the dogs attacking Jumbo. The dogs and chimp tumbled down a hill, and Langergraber ran after them. Eventually he had killed or wounded enough of the dogs for Jumbo to flee.