Julian Huxley (1887-1975), an English evolutionary biologist, was a prolific author and a leading figure in the mid-twentieth-century effort to consolidate the modern synthesis of evolutionary theory. Richard Gawne is Postdoctoral Fellow at the Allen Discovery Center at Tufts University and coeditor of The Convergent Evolution of Agriculture in Humans and Insects (MIT Press). Jacobus Boomsma is Professor of Ecology and Evolution at the University of Copenhagen.