Keywords: Earth, extinction, evolution, life
"With surprising and mysterious regularity, life on Earth has flourished and vanished in cycles of mass extinction every 62 million years, say two UC Berkeley scientists who discovered the pattern after a painstaking computer study of fossil records going back for more than 500 million years."
Link
Source: SF Gate
[via Posthuman Blues]
See also:
Existential Risks
Are We Alone?
Discuss:
Existential Risks - tribe.net
Learn:
How Evolution Works - HowStuffWorks
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