Kepler-452b revolves around a sun much like our own.
July 31, 2008|
The unassuming cells of a sea sponge may hold a clue to the origin of the nervous system, according to a paper published next Tuesday, August 5th, in linkurl:Current Biology.;http://www.current-biology.com/ The detection of proneural pathways in the ancient organism suggests that genes for neurogenesis evolved earlier than previously believed. Researchers have widely believed that nerve cells evolved after the divergence of sponges, which lack organs and nervous systems, from the rest of the a