Evolution: Single cell to multicellular (Introduction)

by David Turell , Saturday, January 08, 2011, 15:31 (5067 days ago) @ dhw


> *** My thanks again to David for his post (6 January at 15.10) summarizing a study which again cannot explain the mechanism for innovation. (I don't know why Natural Selection can even be considered as a source, since it doesn't originate anything.) We know that all of us animals do actually unite a variety of "intelligent" systems that function independently of our own volition (the senses, digestion, circulation, immune system etc.). So maybe the concept of intelligent cells forming new combinations can at least give us a different angle of approach from the highly unsatisfactory one of random mutations, even if it still doesn't offer an explanation.-Here is an article from the pre-Cambrian fossil fields in China, studying the development of exo-skeletons in Ediacaran fossils, which then led to endo-skeletization in the Cambrian Explosion. The article does not explain the Cambrian Explosion, really, nothing does, but this is one of the important steps.-http://www.physorg.com/news/2011-01-skeletons-pre-cambrian-closet.html