Stephen Jay Gould

American biologist and historian of science (1941–2002)

theory in evolutionary biology

Exaptation or co-option is a shift in the function of a trait during evolution. For example, a trait can evolve because it served one particular function, but subsequently it may come to serve another. Exaptations are common in both anatomy and behaviour.

view that science and religion have separate, non-overlapping domains of validity

episode of The Simpsons (S9 E8)

scientific article (publication date: 21 September 1979)