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Article results for “mass extinctions

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Satellite's failure on eve of hurricane season ruffles meteorologist

For the second time in less than a year, the main satellite that keeps an eye on severe weather systems in the eastern half of the United States has malfunctioned, according to government officials. The failure is indicative of the overall aging ...http://science.nbcnews.com/_news/2013/05/23/18450624-satellites-failure-on-eve-o...

Warming seas changing what fish are for dinner, study says

Fish as thermometers The research used the temperature preference of fish and other marine species as a thermometer to assess the impact of climate change on the world's oceans between 1970 and 2006. Atlantic cod, for example, have a colder ...http://science.nbcnews.com/_news/2013/05/15/18276987-warming-seas-changing-what-...

Hard to say if mom or dad dinosaurs incubated eggs

They determined that comparing the size of the birds with the clutch size — which is determined by multiplying the number of eggs laid in a nest by the volume or mass of the eggs — could not effectively determine whether it was the male or ...http://science.nbcnews.com/_news/2013/05/15/18276514-hard-to-say-if-mom-or-dad-d...

Three types of butterflies native to south Florida have gone extinct

ORLANDO, Florida — After six years of searching, an entomologist has concluded that three varieties of butterflies native to south Florida have become extinct, nearly doubling the number of North American butterflies known to be gone. "These are unique ...http://usnews.nbcnews.com/_news/2013/04/29/17975114-three-types-of-butterflies-n...

Web results for “mass extinctions

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Extinction event - Wikipedia, the free encyclopedia

Updated May. 23, 2013

An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the amount of life on earth. Such an event is identified ...http://en.wikipedia.org/wiki/Extinction_event

Mass Extinction, Mass Die-Off Information, Prehistoric Facts ...

Updated May. 22, 2013

Learn about prehistoric mass extinctions and animal die-offs and get information, facts, and more about dinosaur extinctions from National Geographic.http://science.nationalgeographic.com/science/prehistoric-world/mass-extinction/...

Mass extinction - New World Encyclopedia

Updated May. 21, 2013

A mass extinction or extinction event is the phenomenon in which a large number of species of life on Earth become extinct in a relatively short period of time.http://www.newworldencyclopedia.org/entry/Mass_extinction

mass extinctions - Microsoft PowerPoint Presentation

Updated May. 19, 2013

Biodiversity Lecture 3: Mass Extinctions. How do we define a Mass Extinction? Traditionally, within geological sciences, mass extinctions have been seen as some type ...http://ethomas.web.wesleyan.edu/ees123/mass_extinctions.htm