LiveScience: When species lose their natural habitat to deforestation and other causes, they don't immediately disappear. Instead, they gradually die off over several generations, racking up an "extinction debt" that must eventually be paid in full. New research shows that the Brazilian Amazon has accrued a heavy vertebrate extinction debt, with more than 80 percent of extinctions expected from historical deforestation still pending. Only on msnbc.com Redux Pictures file Women in the infantry? Bad idea, female...
URL: http://www.msnbc.msn.com/id/48165883/ns/us_news-environment/
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