... evolutionist) Philosophy of Science, Practice of Science: " There will be well-testable theories, hardly testable theories, and non-testable theories.Those which are non-testable are of no interest ... Sepkoski, Jr, (Dpt of Geological Sciences, University of Rochester, New York), Thomas J.M. Schoph (Dpt of Geophysical Sciences, University of Chicago), and Daniel S. Simberloff (Dpt of Biology, Florida ... whole development of life on earth " (Bowler, Peter J. [Professor of the History and Philosophy of Science, Queen's University, Belfast], "Evolution: The History of an Idea,"...