POV: The year is 700 B.C. You are a Celtic Briton man in Britain. There is an agricultural famine.
POV: The year is 700 B.C. You are a Celtic Briton man in Britain. There is an agricultural famine.
However, unlike your peers who drink dairy from cows to survive, you don't have the rs4988235-A gene mutation for lactose tolerance. You can't digest milk. You are about to experience natural selection.