My question is: where the heck did these new creatures spring from? > > Novel forms that became the 37 animal phyla appeared in the Cambrian Explosion appeared by that same mechansim, whatever it is.-Look at the article "From Simple to Complex". The genomics studies are finding many genes in single-celled organisms that prepare for multicellularity. I still view this as pre-planning in DNA by the UI.-http://www.the-scientist.com/2011/1/1/38/1/