More than one billion animals are kept as pets around the world. But bioethicist Jessica Pierce says that might not be great for our furry, feathered and scaly friends. In this story for @time, she discusses the potential harms of pet ownership, including whether it's ok to buy and sell animals and use them for our own gratification, the anguish of captivity, and the climate impacts of pet-keeping. She also posits a new way forward, in which human-animal ties are mutual and freely chosen. It's a very thought-provoking article; tell us in the comments what you think.