Despite their formidable nature and large size, chacma baboons are vulnerable to a variety of predators. Undoubtedly the main predator of adult chacma baboons overall is the leopard. In the Waterberg Biosphere, chacma baboon comprised 20.2% of leopard kills and 18.7% of the leopard's prey biomass. Although previously little documented, the African wild dog, a predator of similar or even slightly inferior size to male baboons themselves, in Mana Pools National Park (Zimbabwe) took to chacma baboons as their main prey, comprising 44% of 118 kills. Less routine predation on chacma baboons has been reportedly committed by lions, spotted hyena, Nile crocodiles and African rock pythons (in rough descending likelihood of threat). The predators of young chacma baboons are probably even more diverse but poorly-documented. It is documented that Verreaux's eagles and martial eagles have taken young chacma baboons and probable or possible predation has been committed by other eagles: crowned eagles and tawny eagles. When approaching potentially dangerous sites such as watering holes, more vulnerable members of the chacma baboon group may travel near the rear of the group but may conversely end up by the front of group out of fear if a predator approaches. The adult male chacma baboon has a fearsome defense and may assault their predators with their large, sharp canine teeth, which can at least seriously injure predators as formidable as leopards, and (despite being far from exemption from predation) the adult males tend to be the least vulnerable members of the baboon troops. As in other monkeys, the larger, more formidable male baboons may successfully defend more vulnerable members of the troop via attacking predators if they come into sight.