In a money game, men who were shown pictures of lingerie or sexy women accepted disadvantageous deals more often than did men who were shown nonsexual pictures. Men with higher testosterone levels, inferred from ring fingers that were long relative to their index fingers, did worse on the test. Interpretations: 1) Duh. 2) This is what evolution designed men to do. 3) Nevertheless, we can struggle to overcome it. 4) Researchers are having trouble finding images that mess up women the same way. What does that tell you? (For Human Nature’s take on male-female differences in a punishment game, click.