"The mouths, trotters and tongues of the two piglets glow green under ultraviolet light, which indicates the technology to breed transgenic pigs via cell nuclear transfer is mature," Liu Zhonghua, a professor at Northeast Agricultural University in Harbin, capital of Heilongjiang province, was quoted as saying.
The first generation of glowing pigs was produced by injecting Green Fluorescent Protein while they were embryos. Link
(image credit: Reuters)
Are they edible? Then you can go in the restrooms without the lights...