Macaque (Sulawesi Crested) / Macaca nigra

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Sulawesi crested macaques are entirely black, apart from their pink bottoms

Food that is not eaten immediately can be stored in their cheek pouches for a short time

The Sulawesi crested macaque, also known as the Celebes macaque, is an Old World monkey that lives in the northeast of the Indonesian island of Sulawesi (Celebes) as well as on smaller neighbouring islands. These pink-bottomed, punk-haired monkeys are the most endangered of the seven macaque species.

Its skin and hairless face is, with the exception of some white hair in the shoulder range, entirely jet black. The long muzzle with high cheeks and the long hair tuft, or crest, at the top side of the head are characteristic of the species.

Small groups of macaques have only a single male, while larger groups have up to four males. The females, however, always outnumber the males by about four to one.

They are promiscuous with both males and females mating several times with multiple partners. The receptivity of the females is indicated by extreme redness of the buttocks. Females give birth after a 174 days gestation period to a single baby.

Young animals are nursed for one year and become fully mature in three to four years, females sooner than males.

Macaques are omnivores, who spend more than half their day on the ground foraging for food and socialising with up to 70 per cent of their diet consisting of fruits. They also eat leaves, buds, seeds, fungus, birds and bird eggs, insects (such as caterpillars), and the occasional small lizard or frog.