Knowledge and Scientific News, Vol. 4: March, 1907 (Classic Reprint) - Softcover

Inhaltsangabe

Excerpt from Knowledge and Scientific News, Vol. 4: March, 1907

A pair of Triceratops horns in the National Museum (at Washington) bears witness to such encounters, for one is broken midway between tip and base; and that it was broken during life is evident from the fact that the stump is healed and rounded over. While the size of the horns shows that their owner reached a ripe old age.

In connection with the concluding part of the last sentence, it should be mentioned that reptiles, like fishes, but unlike birds and mammals, continue to grow throughout their entire span of life, so that unusually large bodily size is, at all events as a rule, an indication of advanced age. As regards general appearance, Triceratops may, perhaps, be best described as a rep tilian rhinoceros, with the proviso that the tail was much larger and thicker than in that group of animals, and passed insensibly into the body, as in reptiles gener ally, while the number and arrangement of the horns were different.

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