News tagged with chemical evidence

Feast clue to smell of ancient Earth

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.

Apr 29, 2013 4.4 / 5 (7) 1 | with audio podcast

Algeo tracks evidence of 'The Great Dying'

More than 251 million years ago, at the end of the Permian period, Earth almost became a lifeless planet. Around 90 percent of all living species disappeared then, in what scientists have called "The Great Dying."

Oct 28, 2010 4.9 / 5 (17) 0 | with audio podcast