In general, macaques are stocky with a well pronounced muzzle. They have well developed hands with an opposable thumb, and males are generally larger than females. Their face is a light flesh color. Their forehead becomes bald in adulthood, but the rest of the hair on their head is long.
Face is pink or red, and sometimes they have freckles.
Sometimes their eyelids are a light blue color. The hair on the top of the head are long and form a crest when excited. Babies are generally nursed until they are 10 to 12 months of age, but they will start sampling solid foods prior to weaning. The infants will form strong bonds with the mother and others that are related to them. They usually reach sexual maturity by 3 to 4 years of age, but they are often not physically mature until 6 to 8 years of age.