Of all the animals in the world, only the dog has chosen to share his life with man, and while the dog may have benefited from the arrangement, man has gotten the much better end of the deal. With one notable exception: the dog mercifully has no foreknowledge of his own mortality. Even more mercifully he has no knowledge that he and the person he loves won't be together forever. Man, for all the gifts he has been given, for all his cleverness and...