Penguin prostitutes have sex with unattached males and take a pebble from the male's nest after having sex.Previous Fact Next Fact
A few studies have suggested that prostitution exists among different species of animals such as Adélie penguins and chimpanzees. In an actual study the researchers speculate that the female has bent over to grab a stone and the male has misinterpreted the gesture-she hasn't changed her mind or performed a trick. Researchers are still studying the phenomenon, and a consensus has not yet been reached; it is assumed that either the female is baiting, or that the male deliberately chooses to misinterpret the gesture, as coercive sexual copulation is common among these penguins. The BBC further reported Hunter as saying that the female penguins probably didn't engage in prostitution only for stones.
The male penguins, the study speculates, were engaged in sex with the prostitute females only for sexual satisfaction. The data show that when extrapair copulation occurs at the male's nesting site, the female takes one or more stones; but when the extrapair copulation occurs at the female's nesting site, the male never takes a stone. Clearly a male who has copulated with a female benefits his progeny when she takes a stone. Researchers observed chimpanzees in the Taï National Park and concluded that a form of prostitution exists among the chimpanzees in which females offer sex to males in exchange for meat.