字幕表 動画を再生する 英語字幕をプリント This piece of fried chicken was grown in a lab. It is cooked like a regular piece of chicken, except no animals were killed in the process. Instead, it was made from stem cells taken from a live chicken and cultured in a lab could lab grown meat be the food of the future. Scientists start by collecting cells from the chickens. In a biopsy like procedure, these cells, called progenitor cells, can become any type of cell found in meat, including muscle cells and fat cells. The cells are placed in a nutrient rich broth for 2 to 3 weeks until they grow into a piece of meat that is ready to be cooked.