In The End of Captivity?, Tripp York addresses how we talk about the good of other animals in light of a stark impossibility: their freedom from us. While all of us in the animal (and plant) kingdom are interdependent upon one another, humans are unique in that we are the only animals who keep other animals captive. We keep animals in zoos, sanctuaries, circuses, conservatories, aquariums, research facilities, slaughterhouses, and on our farms and...