Should Chimpanzees Be Considered ‘Persons’?; The New York Times, April 7, 2018

Jeff Sebo, The New York Times; Should Chimpanzees Be Considered ‘Persons’?

"The idea of nonhuman personhood does raise difficult questions. One question is which rights nonhumans can have. For instance, if Kiko and Tommy can have the right to liberty, can they also have the right to property? What about the right to free expression or association, or the right to political representation or participation?

Another question is which nonhumans can have rights. For instance, if Kiko and Tommy can have rights, can bonobos and gorillas have rights too? What about cats, dogs and fish? What about chickens, cows and pigs? What about ants or sophisticated artificial intelligence programs?

These questions are unsettling. They are also reasonable to ask. After all, we might think that we need to draw the line somewhere. So if we decide not to draw the line at species membership — if we decide to accept that at least some nonhumans can have at least some rights — then it is not immediately clear where to draw it instead, or even, on reflection, whether to draw this particular kind of line at all."