Should we bring extinct species back from the dead?
Earth is in the midst of its sixth mass extinction: Somewhere between 30 and 159 species disappear every day, thanks largely to humans, and more than 300 types of mammals, birds, reptiles, and amphibians have disappeared since 1500.
http://www.sciencemag.org/news/2016/09/should-we-bring-extinct-species-back-dead
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