Why some animals can never be domesticated

Dogs, sheep, pigs, cows, horses - all these animals and more have been fundamentally changed by humans to make our lives better. Domestication has fundamentally altered the course of human history, reshaping the land and other species to fit our new agricultural lifestyle. But how do you take a wild species and turn… » 2/09/11 1:48pm 2/09/11 1:48pm