we had a very successful day of designing and prototyping for our project on Saturday, using the old reliable Singers!
what fun, thank you Jeffri for hosting!
Saturday, August 7, 2010
Friday, July 30, 2010
Tuesday, July 27, 2010
Sunday, July 25, 2010
Photo: Earliest Animals Were Sea Sponges, Fossils Hint
Fish glide past barrel sponges on a coral reef in an undated photo.
Sea sponges were thriving about a hundred million years before the evolutionary growth spurt that gave rise to modern animals, according to a February 2009 study. Fossil steroids produced by the sponges are now the oldest known fossil evidence of animal life, the study says.