Scientists Are Working To Make Cows Obsolete

Sandra Mu/Getty We depend on cows for food, clothing, and sometimes even insulin. Cattle, though, are expensive and inefficient—each cow drinks a bathtub of water and emits three times that volume of methane daily. There are also the ethics of animal slaughter. But we might no longer need the cow. Scientists are synthesizing the substances we normally get from cows by using bovine cells, yeast, and even bacteria. Meat Since tissue engineer Mark Post debuted an in vitro burger in 2013, several companies have tried to create tasty, scalable test-tube meat.

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