Humans, Animals and Machines

Political theory in the 21st century must address the role of non-humans and examine the traditional priority of human beings. What rights, if any, should animals and AI have and on what basis? Can we even say what it means to be distinctively human? Can that distinctiveness support consequential moral or political conclusions? Is there a clear basis for human or non-human equality which can ground rights or democratic institutions? Or must we find a post-humanist politics of some kind?