(McKay Savage/Wikipedia) Gray langurs are large and fairly terrestrial, inhabiting open wooded habitats and urban areas on the Indian subcontinent. (This image is used with permission under the terms of the Creative Commons Attribution 2.0 Generic license.)
Trained Monkeys Guard Athletes at Commonwealth Games
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SEPTEMBER 28, 2010
Martin Evans, Telegraph.co.uk

Trained langur monkeys are being deployed by organisers of the Commonwealth Games to prevent wild animals infesting sporting venues in Delhi. These highly intelligent primates have been patrolling stadiums and accommodation blocks.
Read the story: www.telegraph.co.uk/sport/