9 Species That Returned From Extinction in 2010 (Slideshow)
Photo credit: Keith Slausen/US Forest Service According to some estimates, a species is lost every 20 minutes . This shocking number considers factors like habitat loss but also includes approximations of the planet’s total number of species, known and unknown. Actually declaring a species extinct, however, is a long and laborious process that requires evidence beyond a reasonable doubt the plant or animal has disappeared from the face of the earth. The difficulty of this process is hig… Read the full story on TreeHugger
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9 Species That Returned From Extinction in 2010 (Slideshow)
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