They have light-colored eyelids which accentuate facial expressions. Many have short tails. Macaques, like other Old World monkeys, are second only to humans in their ability to use fingertips and opposable thumbs to manipulate small objects. Macaques are found in more varied climates and habitats than any other primate, save humans ranging from Japan to Morocco . They are omnivorous, although fruit tends to be their primary food source.
Females usually outnumber males.
Macaques have complex social and behavioral systems. They form friendships and coalitions. They have a wide range of vocalizations and also communicate by gesture and facial expression. Macaques are the most common monkey used in biomedical research. Alternative for Factory Farm Chickens From Marion Burros, New York Times Sunrise at Sunnyside Farms, Washington, Virginia is greeted by a ritual that startles the uninitiated.