Mastering Biology Everyday Biology Video Transcript
if you're growing crops, you have a boom and bust in terms of the food supply.
So you have one growth season a year and you have lots, then nothing, lots, then nothing.
So if you're looking at a population under pressure where people are struggling to get adequate nutrition, anybody who can drink milk into adulthood will be better off.
Right. The advantage that's been measured is just incredible. Absolutely incredible.
How big an advantage it was for these early farmers in Europe.
The core of Mark's research has been trying to understand how what happened thousands of years ago has determined the genes of people alive today.