The tail of other monkeys is completely covered with hair. The life of a monkey Monkeys in captivity live longer than other animals of similar size. They also live longer than most other kinds of mammals, except apes and human beings. Capuchins may live 40 years. Baboons and some macaques may live 30 years.
Life spans are shorter in the wild because of disease and other factors.
Most kinds of monkeys eat almost anything they can find. Their food includes birds and birds' eggs, flowers, frogs, fruit, grass, insects, leaves, lizards, nuts, and roots. Baboons may catch and eat such animals as newborn antelope. Leaves make up about 40 per cent of the food eaten by banded langurs and over 80 per cent of the food of black and white colobus monkeys. All leaf-eating monkeys have sharp crests on their back teeth for shredding leaves.