In the Bears also we are confronted by this principle of classification.
| The Skin-bear | is the Common Bear. |
| The Tongue- " | is the Raccoon. |
| The Nose- " | is the Nasua. |
| The Ear- " | is the Arctitis. |
| The Eye- " | is the Cercoleptes. |
After this principle had been so strikingly verified in several families, I proceeded with confidence also to those which were more difficult, and it resulted that each consists only of five genera severally distinguished by the predominance of some one organ of sense. This method has been carried out throughout my "Allgemeine Naturgeschichte."
Fam. 17. Ophthalmozoa, Man.
Superiorly or in front hands, inferiorly or behind soles.
3575. Here all the senses enter for the first time into a state of perfect equiponderance or proportion. Skin naked, and therefore a perfect organ of feeling; feet and hands differently constructed for progression and manipulation; tongue and lips fleshy, while the latter have hitherto been only tegumental; all the kinds of teeth different, but still very similar, being of equal height and nearly equal size; nose elevated by its whole length from the face, and fleshy; ears oval, laid close against the head and having regular windings or convolutions; eyes directed forwards, with perfect eyelids, and moveable in all directions.
3576. Man by the upright walk obtains his character, namely, that of bodily freedom, for his hind feet take the place of all the four feet of other animals, by which means the hands become free and can achieve all other offices, the feet alone serving to support the body.
He is the only animal that surveys with the axes of the eyes borne parallel the most extensive horizon. All animals whose eyes look higher up or above the ground, as the Horse, Elephant, Ostrich, and such like creatures, have eyes directed sideways.
3577. With the freedom of the body has been granted also the freedom of the mind. Man sees everything, the whole universe, while the animals can only view individual parts thereof, two of these even invariably appearing different, so that the images seen by them are never reduced to unity.
3578. There is only one human family, only one human genus, and only one species; and this just because Man is the whole Animal Kingdom.