The Grampus (_Phocæna Orca_) is a species of Porpoise, and a decided and inveterate enemy to whales; which they attack in great flocks, fastening round them like so many bull-dogs, making them roar with pain, and frequently killing and devouring them. They are usually from twenty to twenty-five feet in length, and in general form and colour resemble the common Porpoise; but the lower jaw is considerably wider than the upper, and the body is somewhat broader and more deep in proportion. The back-fin sometimes measures six feet in length. In one of the poems of Waller, a story (founded on fact) is recorded of the parental affection of these animals. A Grampus and her cub had got into an arm of the sea, where, by the desertion of the tide, they were enclosed on every side. The men on shore saw their situation, and ran down upon them with such weapons as they could at the moment collect. The poor animals were soon wounded in several places, so that all the immediately surrounding water was stained with their blood. They made many efforts to escape; and the old one, by superior strength, forced itself over the shallow into the ocean. But though in safety herself she would not leave her young one in the hands of assassins. She therefore again rushed in; and seemed resolved, since she could not prevent, at least to share the fate of her offspring. The story concludes with poetical justice; for the tide coming in, conveyed them both off in safety; and it is probable, from the great thickness of their skins, that their wounds had not been very deep. [Illustration: THE SEA-UNICORN, OR NARWHAL, (_Monodon monoceros_,)]