Last spring I was reporting on the last Northern white rhinos in Africa and I had an interesting conversation with a bush pilot on the veranda of my host's home on the outskirt of Nairobi. I had been explaining how in the future, stem cell technology might be used to recreate Northern white rhinos in surrogate rhinos, when he asked me, "Why don't they just use stem cells to recreate rhino horns and sell them to stop poaching?" I went home and set out to find anyone else who had the same idea and sure enough, I found the bioengineer and entrepreneur Garrett Vygantas. My piece in The Atlantic focuses on how Vygantas is launching a company to produce and sell artificial rhino horns to Asian markets, and the ethics of this endeavor.