This link has been bookmarked by 29 people . It was first bookmarked on 15 Apr 2008, by Brendan M.
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23 Apr 08
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17 Apr 08
If almost every species on Earth was killed some 250 million years ago, how did our ancient ancestors survive and evolve into us?
biology extinction evolution science interesting history to:read
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multivers3In the deep history of our planet, there have been at least five short intervals in which the majority of living species suddenly went extinct. Biologists are used to thinking about how environmental pressures slowly select the organisms most fit for surv
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16 Apr 08
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Matthew HockenberryUnderstanding the cycle of extinction may offer some insights for modern medicine.
science evolution biology extinction climate interesting medicine
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15 Apr 08
Leon WalkerThis is a scary reminder of how fragile the earth really is
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Buck DeForeHow mammals have the freak ability to generate hydrogen sulfide in emergencies, which may have been a life-saving trait during massive die-off 250 million years ago.
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