These interests were brought together in a book recently published by McGraw-Hill (2002): Up From Dragons: the evolution of human intelligence. Recently with Prof Nicholas Humphrey he has researched a family of five adult human quadrupeds. He is presently reviewing the role of balance in the human evolution of bipedality and the role of pathological conditions in paleaoanthropolgical science. Among, other scientific projects, he is also developing a theory of nonHamiltonian spite, and a new theory of pathogen detecting in the gut among. He also has a interest in methodological and is working upon the implications of the rules and practice distinction for the application of Bayesian logic to the rational theory choices of working scientists.