(Source: University of Florida) GAINESVILLE, Fla. - In the movie "Avatar," so many magnificent animals have gone extinct that scientists can only study them virtually. This environmentally ravaged Earth is set in the near future, in the year 2154, but according to University of Florida biologist Todd Palmer and his colleagues, the Earth in 2015 is already undergoing an accelerated mass extinction. In a study published today in the journal Science Advances, Palmer and his colleagues say there no longer is any doubt: We are entering a mass extinction that threatens humanity's existence. "The Earth's biodiversity plays a really critical role in sustaining the human species, from...
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