![]() Several authors have compared this behavior with the beginning of human warfare. Their tribe also holds more land and so has access to more food. The advantage for the males that triumph is to breed more children. Attacks like this are carefully planned, done only when success is likely, and carried out in silence. They kill them one by one and adopt the females from his group. They usually focus on males that are alone. ![]() If they can, males work together to try to kill other male monkeys. It is thought the main benefit is that meat is a more rich source of nutrition than their usual vegetarian diet. Then they tear the monkey apart and eat it. Attacking monkeysĬhimpanzees attack Colobus monkeys by working as a team to corner them in the high branches of the trees. At present, there is no evidence that the bonobo has a similar level of aggressive behavior. The behavior described in this section refers to the common chimpanzee. Chimpanzees are also known to think ahead and solve problems. The chimp chews leaves to soften them up, dips them in rainwater, and then squeezes the water into its mouth. Some have been known to make a sponge from leaves in order to hold more drinking water. They also strip down twigs and stick them into a termite mound to collect a tasty snack. They will pick up rocks to crack nuts for a meal. She observed how chimpanzees use tools in several ways. Jane Goodall has studied chimpanzees since 1960. Chimpanzees live up to 60 years in the wild. Usually only one offspring is produced they rarely have twins. The gestation period of chimpanzees lasts between six and eight months. They bend twigs and tuck in leaves to make a soft platform to rest in a place that is safe from enemies on the ground.Ĭhimpanzees give birth to live young. At night, chimpanzees sleep in nests that they make on tree branches. ![]() They have hands that look like human hands, but their thumbs are shorter than those of humans. On the ground, they walk on their hind feet and knuckles. They can walk on two feet, but they prefer to move about on all four legs. ![]() Like gorillas and orangutans, chimpanzees are bipeds. ![]()
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