The piggy above was genetically modified to have a yellow nose and feet, while the kitty was engineered so its skin glows in ultraviolet light. The aim is to develop ways to genetically modify animals to have properties not found in nature that have scientific or agricultural benefits. New Scientist surveys the latest variety of "Altered animals: Creatures with bonus features." Paging Eduardo Kac and Alba, your meme is ready! From New Scientist:

Ultimately, the adoption of GM farm animals may hinge on public opinion and the demand for the benefits they can offer. That demand may be felt most urgently in countries such as China, where meat consumption is skyrocketing. "I anticipate that genetically engineered livestock will be first used in China, Cuba and other places around the world, and then come to the US and Europe," says James Murray, an animal geneticist at the University of California, Davis. "It'll be the reverse of what you saw with the plants."

So in 20 years' time will GM animals be as widespread as their botanic counterparts are now? "Technologically, nothing is standing in our way," says Fahrenkrug. "Really, the issue is coming down to: what are you going to make?"