not suited to the sociable lives of males. Male dolphins make complex alliances with one another and often move in packs -- frequently in pursuit of females. "Experimental evidence from captive dolphins demonstrates that bottlenose dolphins are capable of social learning," the researchers wrote. They may be even better at imitating their peers than primates are, the researchers added. "Hence, among all marine mammals, bottlenose dolphins are prime candidates for a social transmission of a behavioral trait in the wild," they wrote. Monkeys, birds and chimpanzees have all demonstrated behaviors that could be described both as tool use and as culture. --SP 2335 Local Time 2035 GMT
