 Evidence for this explanation for the evolution of sex is provided by the comparison of the rate of molecular evolution of genes for kinases and immunoglobulins in the immune system with genes coding other proteins.The genes coding for immune system proteins evolve considerably faster.Further evidence for the Red Queen hypothesis was provided by observing long‐term dynamics and parasite coevolution in a mixed sexual and asexual population of snails ("Potamopyrgus antipodarum").