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最新推荐文章于 2025-01-12 14:08:54 发布

ujn20161222

最新推荐文章于 2025-01-12 14:08:54 发布

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确定已灭绝恐龙的饮食习惯是一项挑战，科学家通过直接证据如胃内容物，以及间接证据，比如将现代动物的身体特征与饮食联系起来，再推断到恐龙身上，来推测它们的食性。

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Determining what extinct dinosaurs ate is difficult, but we can infer some aspects of their dietary preferences. Traditionally, this information has been derived from direct evidence, such as stomach contents, and indirect evidence, such as establishing a correlation between particular body characteristics and diets of living animals and then inferring habits for dinosaurs.

The color black is traditionally associated with mourning.

The male of the species is typically smaller than the female.

Animals such as house cats and dogs have large, stabbing canine teeth at the front of the mouth and smaller, equally sharp teeth farther back in their jaws. Many of these animals are also armed with sharp claws. The advantage of teeth and claws as predatory tools is obvious.