Chris McManus, professor of psychology and medical education at University College London, has won the Aventis science writing prize for his book Right Hand, Left Hand. The junior category was won by independent marine consultant Frances Dipper for the DK Guide to the Oceans. Professor McManus' book concentrates on handedness and the biological basis for asymmetries in the body. This is not the first work to win Professor McManus an award. In 2002, he was awarded the IgNobel prize for medicine for his paper Scrotal Asymmetry in Man and in Ancient Sculpture. In it, he noted that in Greek sculpture, the left testicle is larger than the right.