Some people are uncomfortable with the idea that humans belong to the same class of animals as cats and cows and raccoons. They're like the people who become successful and then don't want to be reminded of the old neighborhood.
Studying cows, pigs and chickens can help an actor develop his character. There are a lot of things I learned from animals. One was that they couldn't hiss or boo me.
Give these Indians little farms, survey them, let them put fences around them, let them have their own horses, cows, sheep, things that they can call their own, and it will do away with tribal Indians.