They live in communities of several individuals, though females (and more rarely, males) will sometimes travel alone or only with their nursing offspring. To protect themselves from predators, they live most of their lives in the trees and build nests each night to sleep in the trees. They will leave when faced with predators like humans. To protect themselves from other chimps, they are territorial and males usually travel together, especially near their territory boundary. Sometimes male chimps will raid a neighboring groups' territory, trying to find and sneak up on a lone male or a female with an infant. If they do, they will kill the neighboring male (it's very gruesome and slow---some chimps will hold down the other chimp and one or two chimps will rip off the victim's scrotum and bite chunks out of their limbs and face and jump up and down on the victim until it is mortally wounded. Frequently this takes many minutes or even an hour or two). If it is a female and infant, they'll kill the infant.
Chimps have large canines and are very strong, which helps them
in a fight.
- they defend themselves by howling at each othher