> Evidence of common ancestors" is precisely what traditional taxonomy looks for. Clades at levels between the traditional taxa were developed by exactly that m

> Evidence of common ancestors" is precisely what traditional taxonomy looks for. Clades at levels between the traditional taxa were developed by exactly that method. DNA analysis is the same strategy with new technology. Yes, it's partly based on the fossil record. But the fossil record is very thin. Only a small percentage of stuff gets fossilized. And it's a very subjective approach. There's also morphology and embryology. But those are also very subjective. It's rather like using phrenology in psychiatry and psychology. With molecular generics, we have objective measures for identifying common ancestors and building phylogenetic trees.