Monkeys in the Middle

Rhesus macaques share about 93 percent of their genomic sequence with humans and are thus popular with medical researchers.

Not so at the All India Institute of Medical Sciences, in New Delhi, where a troop of 80 to 100 of the monkeys have terrorized the campus for several years, entering waiting rooms, biting people, and grabbing food from patients and visitors.

"They'll take anything cold — Pepsi, Coke — but not hot coffee or tea," says Navin Gupta, a

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