derived by descent from has derived by descendant shares ancestor with homologous_to RO:0002158 two individual entities d1 and d2 stand in a shares_ancestor_with relation if and only if there exists some a such that d1 derived_by_descent_from a and d2 derived_by_descent_from a. Consider obsoleting and merging with child relation, 'in homology relationship with' VBO calls this homologous_to homologous_to evolutionarily related to