Green Glow-in-the-Dark Pigs Successfully Bred by Scientists

Green glowing pigs have been successfully bred by scientists in Taiwan by adding the genetic material from jellyfish into a standard embryo. They hope that the experiment will help with research into stem cells and human diseases.

The theory is that when, for example, stem cells are taken from the pigs and used in another animal the green glow will remain with the original cells, making their progress easier to track.

The pigs are green throughout, including internal organs, unlike previously modified versions which were only effected on the surface. In the daytime they display a greenish tinge but in the dark they glow brightly when subjected to blue light.

(source)