mastodon

1. Isn't the mastodon from the Pliocene Epoch?: 乳齿象不是上新世的吗？

2. The ancestors of American Indians probably knew the mastodon.: 美洲印第安人的祖先大概知道乳齿象。

3. Okay, now the Mastodon is from the semi-late Jurassic period.: 接下来这头乳齿象是来自侏罗纪中后期。

4. One of the animals whose bones archeologists study is the mastodon.: 他们研究的动物骨骸之一，就是乳齿象。

5. While she sits at home trying to get the mastodon smell out of the carpet!: 而她却待家里设法去除地毯上乳齿象的味道！

6. She says they were only made for scenery - like the rhinoceros and the mastodon.: 她说，瀑布完全是为了点缀风景而存在的，犀牛和乳齿象也是一样。

7. She says they were only made for scenery-like the rhinoceros and the mastodon...: 她说，是为了观赏——这就像犀牛的乳齿也因此而被创造出来一样。

8. The man in this picture is holding a mastodon tooth that was found not very long ago.: 照片中的人拿著一颗不久前出土的乳齿象牙齿。

9. North American mastodon; in some classifications considered a mammoth rather than a mastodon.: 北美洲的乳齿象；在一些分类中被当作猛犸而不是乳齿象。

10. The researchers say they have also done the first nuclear genetic analysis of the American mastodon.: 研究人员说他们已经完成了首个美洲乳齿象的细胞核遗传学分析。

11. Scientists have now accurately carbon-dated the sharp tip that itself carved from mastodon bone.: 如今，利用放射性碳素测定年代法，科学家已确定这一用乳齿象牙雕刻而成的长矛尖端的精确年代。

12. The rib containing the spear point was part of a collection of mastodon remains unearthed in the late 1970s.: 这一含有长矛尖的肋骨来自一批20世纪70年代后期采集出来的乳齿象遗骸。

13. The researchers also made what they say are the first sequences of nuclear DNA from the extinct American mastodon.: 据研究者说，他们还首次完成了已灭绝的美洲乳齿象细胞核DNA序列的测定。

14. The mastodon became extinct about 10, 000 years ago - around the same time that mammoths disappeared from most of their range.: 美洲乳齿象在约1万年以前灭绝-几乎在同一时间猛犸象也从大多数它们分布的地方消失了。

15. Previously the first indications of mastodon hunting were associated with the 'Clovis culture' which emerged some 1, 000 years later.: 先前，第一个狩猎乳齿象的迹象与晚出现1000年的克劳维斯文明联系在一起。

16. The mammoths should not be confused with the American mastodon (Mammut americanum), another ancient elephant from North and Central America.: 猛犸应该不会与生活在北美洲和中美洲的另一种古象——美洲乳齿象相混淆（Mammutamericanum）。

17. The researchers compared sequences of DNA from the nuclei of African and Asian elephants, and from woolly mammoths and the American mastodon.: 研究人员对比了非洲象和亚洲象，以及来自猛犸象和美洲乳齿象的细胞核dna序列。

18. Although mastodon mitochondrial DNA has been sequenced before, the researchers say they were the first to do the analysis on DNA from the cell nucleus - in this case, using material from a tooth.: 尽管此前已完成了美洲乳齿象的线粒体dna测序，研究者表示他们还首次实现了对细胞核dna的测序-在本例中使用的材料来自牙齿。

19. Although mastodon mitochondrial DNA has been sequenced before, the researchers say they were the first to do the analysis on DNA from the cell nucleus - in this case, using material from a tooth.: 尽管此前已完成了美洲乳齿象的线粒体dna测序，研究者表示他们还首次实现了对细胞核dna的测序-在本例中使用的材料来自牙齿。

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