The idea of common descent — that some individuals are related to each other by way of a common ancestor — is uncontroversial when applied to individuals of the same species. That it is true of individuals of different species was suggested by Pierre-Louis Moreau de Maupertuis in the 1740s and was adopted as a central concept of evolution.
The idea of universal common descent — that all species of life on Earth developed, or descended, from a common ancestor — is now almost universally accepted by the scientific community.  It is notably rejected by creationists, especially young-Earth creationists, who suggest that groups of species were created separately by God and the groups could not interbreed.
- ↑ Douglas Theobald, 29+ Evidences for Macroevolution, The Scientific Case for Common Descent, 1999-2012