To trace their evolution, the researchers made a large-scale comparison of elephants to other mammal species-including extinct relatives like woolly mammoths and mastodons whose DNA remains in their fossils.

  • 为了追溯它们的演化过程,研究人员对大象和其他哺乳动物(包括猛犸象和乳齿象等虽然已经灭绝,但DNA在化石中得到保存的现代象的“亲戚们”)的基因组进行了大规模的比对。
  • 来源:互联网摘选更新时间:2025-01-20 12:54:10

  • 重点词汇
  • mammoths猛犸象
  • DNAabbr.脱氧核糖核酸(deoxyribonucleic acid);(美国)国防部核子局(Defense Nuclear Agency);
  • theirdet.他们的;她们的;它们的;(在提及性别不详的人时,用以代替his或her);
  • andconj. 和,与;而且;于是,然后;因此;
  • extinctadj. 灭绝的;绝种的;消逝的;破灭的;
  • toprep. 向,朝着;到;关于;属于;
  • fossilsn.化石( fossil的名词复数 );老顽固;食古不化的人;老古董(老人);
  • whosepron.谁的;其;
  • made…制造的;制作…的;
  • ofprep. 关于;属于…的;由…制成;
  • 相关例句
1、

Studies on Wild Amur Tiger ( Panthera tigris altaica) During Winter Time in Hunchun Nature Reserve, JiLin

吉林珲春自然保护区冬季野生东北虎(Panthera tigris altaica)生态学问题研究

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2、

The Development of Research of Jilin Northeast Tigers Basketball Club

吉林东北虎篮球俱乐部的发展现状与对策研究

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3、

Blood samples from pre-immune Amur tiger, African lion and lynx were collected and the antibody against CDV was measured by neutralization tests.

采取某动物园未免疫的东北虎、非洲狮、猞猁血样,用中和试验检测,结果显示这些动物的犬瘟热病毒(CDV)抗体水平均小于1:5。

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4、

Identification of polymorphic microsatellite DNA loci and paternity testing of Amur tigers

东北虎微卫星DNA遗传标记的筛选及在亲子鉴定中的应用

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5、

Experts said the tiger should return to the wild as soon as possible, as the evaluation, with no abnormal behaviors or risk of disease.

经评估论证,专家认为这只野生东北虎生理指标正常,不存在异常行为和疫病风险,适宜尽快回归自然。

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6、

Separation and Identification of Pathogen of Pasteurellosis from Tiger and Its Pathological Observation

东北虎巴氏杆菌病的病原分离鉴定及病理学观察

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7、

A Study on the behavioral models of Amur tiger in captivity

笼养条件下东北虎行为模式的研究

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8、

Study on the Significance and Measures to Protect Wild Manchurian Tiger

浅论野生东北虎的保护现状及保护措施

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10、

If they have this technology, we are already in the P out of a classroom in Northeast tiger.

如果有这个技术,我们早就在教室里P出个东北虎了。

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11、

The Research on the Behavior of Amur Tiger Cub in Captivity

圈养东北虎幼仔行为研究

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12、

An additional 18 to 22 tigers are estimated to live in China.

据估计,中国境内还生活着18到22只东北虎。

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13、

Time budget of breeding behaviors of Amur tiger in Heilongjiang Amur Tiger Park

半圈养条件下东北虎繁殖期的行为时间分配

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14、

Effects of emergency factors on reproduction of manchurian tiger

应激因素对东北虎生殖的影响

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15、

Discussion on Protection to Amur Tiger From the Aspect of Human Action

从人类活动的角度谈对东北虎的保护

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16、

These cats are also known as the Manchurian or Korean tiger.

这些猫科动物被称为东北虎,或朝鲜虎。

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17、

Simulation of the Effects of Landscape Fragmentation on Amur Tiger's Main Prey

景观破碎化对东北虎主要猎物种群影响模拟

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18、

Standing and other behaviors in captivity and semi-free environment were similar.

笼养和半散放东北虎的站立和其它行为变化规律较为相似,但半散放东北虎的发生强度要远远高于笼养东北虎。

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19、

The behavior of tiger cub is difference between day and night.

东北虎幼仔行为早期就有昼夜差异。

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20、

Studies on Renal Histology and Morphology of a North-East Tiger

东北虎肾组织形态结构的研究

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