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Researchers Offer Explanation for Higher Survival Rate of Freshwater Organisms After Chicxulub Asteroid Impact
Wednesday, July 24, 2013 7:50
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After studying what likely occurred in the aftermath of Earth being struck by the Chicxulub asteroid, a team of researchers in the U.S. has found evidence to suggest organisms in freshwater lakes and streams fared far better than did organisms that lived in the oceans. In their paper published in Journal of Geophysical Research:
Credit: NASA
Biogeosciences, the team offers an explanation of why freshwater fish and other organisms had lower rates of extinction than did those that lived in the sea.
The Chicxulub asteroid struck the planet approximately 66 million years ago leaving a giant crater off the Yucatán Peninsula. Most scientists now believe it was the cause of non-avian dinosaur extinction.
More information: Journal of Geophysical Research: Biogeosciences DOI: 10.1002/jgrg.20086
by Bob Yirka
Physorg.com
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