Male chimpanzees have a penchant for a toyboy lifestyle and would far rather pair off with an older female than find one of their own age, a study has found.To a young male chimp there is nothing so attractive as wrinkles, sagging skin and bald patches in a female who is old enough to be his great-great-grandmother. Young women in human society can find themselves faced with a queue of men hoping to buy them a drink, but in chimpanzee communities it is the experienced female who is regarded as the epitome of beauty. The toll that age and a...