Tiny 1,900 million-year-old fossils from rocks around Lake Superior, Canada, give the first ever snapshot of organisms eating each other and suggest what the ancient Earth would have smelled like.
MORE: http://www.sciencedaily.com/releases/2013/04/130429154107.htm
See also...
Dinosaur Predecessors Gain Ground in Wake of World's Biggest Biodiversity Crisis
http://www.sciencedaily.com/releases/2013/04/130429154059.htm
