Chimpanzees are highly intelligent mammals that can learn how to use tools, such as twigs, leaves and blades of grass to extract food and water. They also construct nests made of leaves and branches on tops of trees to avoid predators at night.
They have adapted a number of behavioral mechanisms in order to thrive in their native habitat. Mainly found in the rainforests, chimpanzees have been observed to use leaves as probes to eat termites and insects. They chew on leaves, spit the mushy ball and dip it in water, using the acquired absorbency as a way to drink and suck out more fluids. Chimpanzees can break the shells of nuts by cracking them open with a stone.
Though they are both terrestrial and arboreal animals, chimpanzees are most comfortable in the tops of the trees. At night, they build a nest for themselves on sturdy branches several feet from the ground to protect themselves from predators. They live in a fission-fusion group, which sometimes consists of more than 100 individuals. The groups are further divided into family units and every chimpanzee enjoys the constant association of the young and the old. Living together in a close-knit society enables them to intimidate predators and to closely control and protect their food sources.