Female chimpanzees 'sell' sex for fruit By Auslan Cramb, Scottish Correspondent Last Updated: 4:01pm BST 11/09/2007 Female chimpanzees are "selling" sex to the males that gather the most fruit, according to new research. Behavioural psychologists found that female chimps mate with the males that give them the most fruit, while male chimps steal "desirable" fruits such as papaya from farms and orchards in a bid to woo potential mates. Oranges, pineapples and maize are among the most sought after crops, with bananas proving far less popular. The scientists also discovered that the chimp that gathered the most fruit in the...