Common descent is the idea that two populations or species share a common ancestral species, and are both descended from that ancestor by normal processes of replication. This is a fairly commonplace notion. The theory of common descent states that all species (on Earth, at least) share common ancestors, back to a single common ancestor of all life.
The mechanisms that produce diversity from common ancestors are those of the Theory of Evolution.
Is above definition correct?
Anyone bother to give Common design definition so we can start debate?Â Preferably by one who opposes the concept.