On this ID the Future from the vault, historian Michael Flannery is on The Universe Next Door with Tom Woodward, continuing their discussion of Alfred Russel Wallace, the co-founder with Charles Darwin of the theory of evolution. Dr. Flannery is an expert on Wallace’s life and scientific pursuits, and is the author of Alfred Russel Wallace: A Rediscovered Life and editor of Intelligent Evolution: How Alfred Russel Wallace’s World of Life Challenged Darwinism. Here he gives Woodward a quick flyover of the rich body of work that Wallace produced in the course of his lengthy scientific career, and explains how the work of Thomas Huxley and the X Club contributed to Wallace eventually being overshadowed by Darwin.