What do you think of when you hear the term "in vitro"? The first thing would probably be in vitro fertilization and test tube babies. What if we told you scientists at a nonprofit research consortium called New Harvest are using this "in vitro" method to develop new meat substitutes. Their hope is that these new discoveries and advancements would reduce the need for farm animals, slow the spread of avian influenza, and reduce the meat industries already-enormous environmental footprint.