Evolution says that life began with the simplest forms. It took over a billion years just to evolve algae and another billion years for living things to have more than one cell. It took half a billion years of slow development to generate today's creatures. And evolution says that this story comes from the fossil record.

REF.: Marland & Rudwick. 1964. The great intraCambrian iceage. Scientific merican, v. 211, August. pp. 2836. Photo: Trilobites_Ángel M. Felicísimo_CCA 2.0