By actually printing DNA, researchers are now able to create entirely new species. They started with a glow-in-the-dark plant, and now have plans to design microbes that will live in your stomach and actually change the smell of your fecal matter. Even crazier, they may be able to associate particular gas odors with biological states, so you can effectively have an early warning system built inside you. Anthony couldn't be more excited, but Jeff wonders when our Frankenstein microbes will inevitably destroy us all in a flowery-smelling apocalypse.