From a reader:
Please be so kind as to point out to Jonah that John Paul II did not declare that dogs had souls. In fact the most eloquent proponent of the matter was St. Thomas Aquinas who explained that all animals have an “anima” i.e. a soul. However It would also be important to note that the souls of animals are not immortal as are the souls of Humans. This is a big distinction that requires more theology than the Corner is probably apt to allow. The short of it is simply that, although Dogs will not be a part of the Beatific Vision, which immortal souls experience if they the make it to Heaven, they will be with us, as will all creation, at the New Creation, the fulfillment of all time in Eternity.