r/Fitness does a weekly "Moronic Monday", a judgment-free thread where people can ask questions that they would ordinarily feel embarrassed for not knowing the answer to. I thought this seemed like a useful thing to have here - after all, the concepts discussed on LessWrong are probably at least a little harder to grasp than those of weightlifting. Plus, I have a few stupid questions of my own, so it doesn't seem unreasonable that other people might as well.
Tiger meat would be much more expensive than beef, but there's still enough of a market for it to keep tigers from going extinct.
Not all animals can be domesticated for meat production. Jared Diamond discusses the question in "Guns, Germs and Steel". He calls it the Anna Karenina principle, and some of the factors influencing this are: