▪ Abstract In the 1970s, researchers provided the first detailed descriptions of intergroup
conflict in chimpanzees. These observations stimulated numerous comparisons between …

Publisher Summary This chapter discusses the current knowledge of competition and
cooperation in wild chimpanzees. It explicitly focuses on recent field studies that shed new …

Observations of chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) provide
valuable comparative data for understanding the significance of conspecific killing. Two …

Unlike humans, who came down from the trees and developed bipedal locomotion,
chimpanzees have remained in the original habitat of our ancestors: the tropical rainforests …

This paper tests the proposal that chimpanzees (Pan troglodytes) and humans have similar
rates of death from intraspecific aggression, whereas chimpanzees have higher rates of non …

Male chimpanzees, Pan troglodytes, cooperate to defend a community range within which
resident females range in smaller core areas. There has been debate over exactly what …

Chimpanzees (Pan troglodytes) have hostile intergroup relations throughout most or all of
their geographic range. Hostilities include aggressive encounters between members of …

Intercommunity aggression in chimpanzees and primitive warfare in humans possess
striking similarities, such as the common occurrence of large male coalitions, systematic …

Chimpanzee diets are highly variable, but in all cases dominated by ripe fruit. Previous work
has suggested that in the Budongo Forest Reserve, Uganda, ripe fruit remains available …

Two generations of researchers have followed Goodall and Nishida into the field. As a
result, chimpanzees are now one of the best and most widely studied of nonhuman …