Thirty Earths: ArtEvolved points us to this remarkable set of images depicting the changing physical appearance of the Earth over the last 750 million years. The thirty visual reconstructions were recently released by the Planetary Habitability Laboratory of the University of Puerto Rico at Arecibo...
April 29, 2011 | By Mark Strauss
Paleontologists are looking to the fossil record to decipher what the earth's atmosphere was like hundreds of millions of years ago
April 19, 2010 | By Brian Switek
A storied trove of fossils from a Canadian paleontological site is yielding new clues to an explosion of life on earth
August 2009 | By Siobhan Roberts
An Illinois coal mine holds a snapshot of life on earth 300 million years ago, when a massive earthquake "froze" a swamp in time
July 2009 | By Guy Gugliotta
What's the world's oldest communal ocean reef doing in the Green Mountain State?
January 2007 | By Dick Teresi
The "missing link?" At least a step in a new direction
June 2006 | By Laura Helmuth