. Elements of comparative zoology. Zoology. MAMMALS. 389 have descended from some wolf stock; but others think that dogs and wolves are distinct, and even that our com- mon dogs represent several originally distinct kinds or species. The hysenas are intermediate between the cats and dogs in many respects. They have the back teeth fitted for . •:. FIG. 173.—The harbor seal (Phoca vitulina). After Elliott. % crushing. In the cats, of which there are more than fifty species, the teeth are usually if, c^, pm%, m\, while the claws are retractile into sheaths. Our domestic cat appar- ently had its o
. Elements of comparative zoology. Zoology. MAMMALS. 389 have descended from some wolf stock; but others think that dogs and wolves are distinct, and even that our com- mon dogs represent several originally distinct kinds or species. The hysenas are intermediate between the cats and dogs in many respects. They have the back teeth fitted for . •:. FIG. 173.—The harbor seal (Phoca vitulina). After Elliott. % crushing. In the cats, of which there are more than fifty species, the teeth are usually if, c^, pm%, m\, while the claws are retractile into sheaths. Our domestic cat appar- ently had its origin in Egypt, while ancient Greece and Rome lacked our familiar puss, its place being taken by domesticated martens. Among the cats the tiger, lion, panther, leopard, and puma rank first, and with them are associated the wildcats and lynxes. In external form the Pinnipedia (seals and walruses) have little resemblance to the other carnivores, but in structure,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1904
