Nighttime sheep-herders rejoice, for green-glowing sheep are now a thing. Two questions, though. How? And why?
This picture of a glowing cat has not been altered in any way. The cat, on the other hand, has been altered quite a bit. A team of researchers has genetically engineered it to express green fluorescent protein (aka "GFP," originally found in jellyfish), which makes the cat glow green under ultraviolet light.
It looks like we're one step closer to having laser vision (or at least, laser-based diagnostic and therapeutic techniques). Researchers at Harvard Medical School and Massachusetts General Hospital in Boston have genetically engineered the world's first "living laser." That's right - a living cell can shoot laser…