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The Controversial, Mad Science Strategy to Save Earth's Rhinos 

Rhino horn is more precious than gold on the black market, and people’s insatiable demand for the stuff has driven rhinos to the brink of extinction. Now a Seattle-based startup has a radical plan to save these incredible animals: Using synthetic biology to manufacture rhino horns in the lab. » 7/17/15 4:20pm 7/17/15 4:20pm