15 enero 2015
Over the past 500 years, approximately 500 land-based animal species have gone the way of the dodo, becoming extinct as a result of human activity. In the ocean, where scientists count only 15 or so such losses, the numbers currently aren’t nearly as dire.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZJroRnVmkRQ/150115142241.htm
