Samples of in-vitro meat, or cultured meat grown in a laboratory, are seen at the University of Maastricht November 9, 2011. Scientists are cooking up new ways of feeding the world's ever growing hunger for meat that could save the environment and the lives of millions of animals. In-vitro meat or cultured meat is an animal flesh product that has never been part of a complete, living animal, and is quite different from imitation meat or meat substitutes, which are vegetarian foods made from vegetable proteins like soy. Picture taken November 9. To match Feature SCIENCE-MEAT/ REUTERS/Francois Lenoir (NETHERLANDS - Tags: FOOD SOCIETY SCIENCE TECHNOLOGY)