Have you ever wondered where your daily glass of milk came from? Here we discuss the state of US Dairy cows - and the current inbreeding practices taking place. Should we be concerned about this? Have a listen to find out! Main article:https://www.npr.org/sections/thesalt/2019/10/17/770696476/most-u-s-dairy-cows-are-descended-from-just-2-bulls-thats-not-good