It is estimated that humans have consumed dairy products from cows, sheep and goats for at least 10,000 years, starting in the Neolithic revolution 8000 BCE. Ancient baby bottles provide evidence that milk from animals was used to feed human infants at least 8,000 years ago. The caveman remains (the proteins were entrapped within dental plaque) came from three different Neolithic sites – Hambledon Hill and Hazleton North in the south of England and Banbury Lane in the East Midlands.
Why has evolution favoured tolerating dairy?
How healthy is it to drink milk?