The ability of adults to drink milk…. jlolds Europe, famine, lactase, lactose August 5, 2013 1 Minute as it relates to European history, story is here. The key concept is hedging against famine. Share this:TwitterFacebookLike this:Like Loading... Published by jlolds Native Angeleno, professor of Neuroscience and Public Policy at George Mason University View all posts by jlolds Published August 5, 2013