TONY CAMACHO / SCIENCE PHOTO LIBRARY TONY CAMACHO / SCIENCE PHOTO LIBRARY
Bonnet macaques (Macaca radiata) grooming. Social grooming in monkeys involves removing dead skin, debris and insects from the skin and fur. Infants (one at lower right) are protected by their mother and feed on her milk until they are 6 to 7 months old, becoming independent at around a year old. This monkey is so named because of the bonnet-shaped patch of hair on its head. It reaches a body length of between 35 and 60 centimetres. It eats ripe fruits, leaves and insects, and lives in groups in evergreen and deciduous forests. Photographed in Periyar National Park, Kerala, southern India.
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