The Seal (_fig. 192._) in general has a round head, like the human species; a broad muzzle like the otter; eyes large and elevated; little or no external ears, having only two auditory passages on the sides of the head; whiskers about its mouth; teeth somewhat resembling those of the wolf; the tongue forked at the point; the body, hands, and feet, covered with a short and bristly hair; no arms but two membranes, like hands, with five fingers terminated by as many claws; no legs but two feet exactly like the hands, except being larger and turned backwards, as if designed to unite with a very short tail, which they accompany on each side; the body is thickest at the breast from whence it tapers down to the tail like a fish. He is so strange an animal that he appears fictitious, and has served as a model for the poets to form their tritons, syrens, and other sea deities, whom they feigned to have the head of a man, the body of a quadruped, and the tail of a fish. In fact, he seems to reign superior in the mute empire of the sea, by his voice, figure, and intelligence, which he possesses equally with any land animal; he is so far above the order of fishes, that he seems not only to belong to a different order of beings, but to a different world. Hence though of a nature very distant from that of our domestic animals, yet he seems susceptible of a kind of education. He is reared by putting him often in water; he is taught to give a salute with his head and his voice; he will come when called, and he gives many other signs of intelligence and docility. His brain is proportionally larger than in man: his sensations are as perfect, and his intellects as active, as those of any quadruped; both are strongly marked in his docility, his social qualities, his strong instinct for the female, his great attention towards his young, and by the expressive modulation of his voice, which is superior to that of any other animal. His body is likewise firm and large; he is very strong and armed with sharp teeth and claws. He also enjoys many particular and singular advantages. He can, with perfect ease, endure heat or cold; he feeds indifferently on grass, flesh, or fish; and he can equally live on ice, land, or in the wafer. This animal, with the walrus alone, deserves the name of _amphibious_. They alone have the _foramen ovale_ open, consequently they are the only animals who can exist without respiration, the elements of air and water being equally agreeable. The otter and the beaver cannot properly be termed amphibious, as the air is their real element, for not having this aperture through the septum of the heart, they cannot remain any length of time under the water, but are obliged to quit it, or raise their heads out of it in order to respire.