News tagged with mass extinction

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Extinction runs in the family

(PhysOrg.com) -- Global calamities like the one that doomed most dinosaurs forever alter the varieties of life found on Earth, but new research shows that it doesn't take a catastrophe to end entire lineages. ...

Aug 06, 2009
4.7 / 5 (11) 3

Surviving mass extinction by leading a double life

(PhysOrg.com) -- Drifting across the world's oceans are a group of unicellular marine microorganisms that are not only a crucial source of food for other marine life -- but their fossils, which are found in abundance, provide ...

Jul 14, 2009
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New Blow for Dinosaur-Killing Asteroid Theory

(PhysOrg.com) -- The enduringly popular theory that the Chicxulub crater holds the clue to the demise of the dinosaurs, along with some 65 percent of all species 65 million years ago, is challenged in a paper ...

Apr 27, 2009
4.5 / 5 (33) 14

DNA duplication: A mechanism for 'survival of the fittest'

VIB researchers connected to Ghent University, Belgium, have discovered that DNA duplications have given plants an evolutionary advantage. This mechanism enabled plants -- in contrast to the dinosaurs -- to survive the Cretaceous-Tertiary ...

Mar 23, 2009
4 / 5 (1) 1