News tagged with mass extinction events

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 ...

dateApr 27, 2009 in Earth Sciences
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Reef fish arrived in two waves

(Phys.org) —The world's reefs are hotbeds of biological diversity, including over 4,500 species of fish. A new study shows that the ancestors of these fish colonized reefs in two distinct waves, before ...

dateApr 10, 2014 in Plants & Animals
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Mass extinction may not cause all organisms to 'shrink'

The sizes of organisms following mass extinction events may vary more than previously thought, which may be inconsistent with the predictions of the so-called 'Lilliput effect,' according to a study published in PLOS ONE on Feb ...

dateFeb 05, 2014 in Ecology
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