I need to think that I am not the only one who has ever asked:

Out of all the mammal options out there, what’s so special about cow’s milk that it’s practically the only kind we drink?

Maybe you phrased it differently – like “Why don’t we drink pig milk?” (followed immediately by “Why do I think it’s so disgusting to even ask that?”) or “Why do we eat sheep cheese but don’t drink sheep milk?” or “Do other cultures drink milk from other animals?” or “How do you milk a cheetah?”

Well, wonder no more – the answers to these questions, more or less, are given in this really interesting story on Slate.