. Beginners' Zoology . Antelope 2l6 BEGINNERS ZOOLOGY the United States, however, is an intermediate form, as itshorns are hollow, but are shed each year. The hollowhorns are a modification of hair. Do solid or hollowhorns branch ? Which are possessed by both are Which are better suited for fight-ing . Why would the deer have less need to fight thanthe cattle ? Deer are polygamous, and the males use their. Fig. 392.— Rocky Mountain Sim^v {Ovis tnontana). x^ horns mostly for fighting one another. The sharp hoofs ofdeer are also dangerous weapons. The white-tail deer(proba


. Beginners' Zoology . Antelope 2l6 BEGINNERS ZOOLOGY the United States, however, is an intermediate form, as itshorns are hollow, but are shed each year. The hollowhorns are a modification of hair. Do solid or hollowhorns branch ? Which are possessed by both are Which are better suited for fight-ing . Why would the deer have less need to fight thanthe cattle ? Deer are polygamous, and the males use their. Fig. 392.— Rocky Mountain Sim^v {Ovis tnontana). x^ horns mostly for fighting one another. The sharp hoofs ofdeer are also dangerous weapons. The white-tail deer(probably the same species as the Virginian red deer) isthe most widely distributed of the American deer. Itkeeps to the lowlands, while the black-tailed deer prefersa hilly country. The moose, like the deer, browses ontwigs and leaves. The elk, like cattle, eats grass. The native sheep of America is the big horn, or RockyMountain sheep (Fig. 392). The belief is false that they MAMMALS 217 alight upon their horns when jumping down post sentinels and are very wary. There is also anative goat, a white species, living high on the RockyMountains near the snow. They are rather stupid ani-mals. The bison once roamed in herds of countless thou-sands, but, with the exception of a few protected in parks,it is now extinct. Its shaggy hide was useful to man inwinter, so it has been well-nigh destroyed. For gain manis le


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