Origin of the Human Species, a wide-ranging philosophical and interdisciplinary analysis of evolutionary theory, shows how authentic Catholic teaching on Adam and Eve and Original Sin is fully compatible with legitimate modern science, without committing to young-Earth scientific creationism or a theistic evolutionism that compromises Catholic belief.

This expanded third edition includes two new appendices: the first defends a literal Adam and Eve against recent claims that a single mating pair of first true human parents is scientifically impossible; the second shows why a purely Darwinian naturalistic explanation for the evolution of new and essentially superior forms of life is philosophically impossible. This work resolves many philosophical and theological issues raised by evolutionary theory.