What, exactly, do we owe to our fellow animals? Which animals are conscious, and how do we tell? How can we know what’s best for animals that cannot tell us their preferences and needs directly? This week, Adam is joined by one of the most eminent philosophers in the world, Martha Nussbaum, to discuss her new book Justice for Animals. Pick up a copy at http://factuallypod.com/books Learn more about your ad choices. Visit megaphone.fm/adchoices See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.