Some African tribes have a tradition of hunting giraffes for food. Tribes in Sudan, Chad, and Ethiopia hunt them on horseback, but the bushmen of Botswana hunt them on foot, creeping up behind them and cutting the tendons in their back legs to prevent them from running away, then spearing them to death. It has been found that the presence of humans, weakens social relationships of giraffes. Giraffes that live close to human settlements have weaker bonds with other giraffes and fewer interactions with other members of the species.