. The animans and man; an elementary textbook of zoology and human physiology. however, are not solid and do not break off at the base asin the deer, but are composed of an inner bony core andan outer horny sheath, the outer sheath only being family Bovidae includes the once abundant buffalo or THE VERTEBRATES: MAMMALS 253 bison (Bison bison) (frontispiece), the big-horn or RockyMountain sheep (Ovis canadensis) (fig. 128), and the strangepure-white Rocky Mountain goat (Oreamnos montanus).The buffalo was once abundant on the Western plains,. FIG. 132. A buffalo, Bison bison, killed for
. The animans and man; an elementary textbook of zoology and human physiology. however, are not solid and do not break off at the base asin the deer, but are composed of an inner bony core andan outer horny sheath, the outer sheath only being family Bovidae includes the once abundant buffalo or THE VERTEBRATES: MAMMALS 253 bison (Bison bison) (frontispiece), the big-horn or RockyMountain sheep (Ovis canadensis) (fig. 128), and the strangepure-white Rocky Mountain goat (Oreamnos montanus).The buffalo was once abundant on the Western plains,. FIG. 132. A buffalo, Bison bison, killed for its skin and tongue on theplains of Western Kansas, forty years ago. (Photograph by J. LeeKnight.) travelling in enormous herds. But so relentlessly has thisfine animal been hunted for its skin and flesh that it is nowpractically exterminated (fig. 132). A small herd is stillto be found in Yellowstone Park, and a few individualslive in parks and zoological gardens. In all of the Bovidsethe horns are simple, hollow, and permanent, each enclosinga bony core. 254 THE ANIMALS AND MAN The carnivorous mammals (Ferae).--The order Feraeincludes all those mammals usually called the carnivora,such as the lions, tigers, cats, wolves, dogs, bears, panthers,foxes, weasels, seals, etc. All of them feed chiefly on animalsubstance and are predatory, pursuing and killing theirprey. They are mostly fur-covered and many are huntedfor their skin. They have never less than four toes, whichare provided with strong claws that are frequently more orless retractile
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