Nature Published online: 31 May 2006; | doi:10.1038/441575a Sex and violence in rock art Are cave paintings really little more than the testosterone-fuelled scribblings of young men? Reviewed by: Paul G. Bahn It is an odd fact that the art of the last Ice Age (the Upper Palaeolithic) is characterized by its numerous stylized or naturalistic animal images, and yet its study has rarely involved animal ethologists, apart from an occasional article by specialists in bison or big cats, or by a veterinarian keen to argue that some of the depicted animals were dead or dying. A palaeobiologist has now...