trivers robert_500wRobert Trivers was awarded the 25th Crafoord Prize by the Royal Swedish Academy of Sciences. The prize is the equivalent of a Nobel, awarded annually on a rotating basis to a scientist in one of four disciplines (Biosciences, Geosciences, Astronomy, and Mathematics). The prize honors Prof. Trivers’ seminal contributions over the last 40 years to the understanding of the evolution of complex social behaviors, including cooperation and conflict among kin and non-kin.