ScienceDaily -- More than 500 million years ago, single-celled organisms on Earth's surface began forming multicellular clusters that ultimately became plants and animals. Just how that happened is a question that has eluded evolutionary biologists.
MORE: http://www.sciencedaily.com/releases/2012/01/120117144330.htm
See also...
A First: Brain Support Cells from Umbilical Cord Stem Cells
http://www.sciencedaily.com/releases/2012/01/120117144332.htm
Lost Charles Darwin fossils rediscovered in cabinet
http://www.bbc.co.uk/news/science-environment-16578330
