 He has presented his theory at The Stony Brook Human Evolution Symposium and Workshop, convened by Richard Leakey , and gave the keynote presentation at the NSF-sponsored symposium Strategies for Risk Communication in 2006.Most recently, Bingham joined Noam Chomsky, Marc Hauser, Ray Jackendoff, Philip Lieberman, Ian Tattersall and others to debate the issues surrounding the evolution of human speech at the Morris Symposium on language evolution .He and Souza presented their work on theories of human evolution, behavior and history at the 2009 meeting of the Cold Spring Harbor Symposium on Quantitative Biology.