Tree of life not real (Introduction)

by David Turell , Tuesday, February 18, 2014, 14:50 (3933 days ago) @ dhw

dhw: If "we get life only from life", the new species can only be the result of innovations from within existing species. Whether this is as a result of inventive interaction among existing communities of intelligent cells in response to environmental changes, or divine intervention (your God dabbling with existing organisms), makes no difference to the keystone of evolutionary theory, which is that all forms of life are descended from earlier forms.-Your statement is a given. Tony raised the issue. Simple answer: We don't know the mechanism for speciation.