"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: All life on Earth can be traced back to a Last ...
All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. A study suggests that this organism likely lived on Earth only 400 million years after its formation. Further ...
Introduction : The coherence of history / Stephen Jay Gould -- The planetary setting of prebiotic evolution / Sherwood Chang -- Early environments : constraints and opportunities for early evolution / ...