1、Not all large mammals died out at that time.
并不是所有的大型哺乳動物都在那個時期滅絕了。

2、Giraffes are the tallest land mammals in the world, with heads that may tower 20 feet above ground.
長頸鹿是世界上最高的陸地哺乳動物，可以高達20英尺。

3、Mammals fared better, with two out of nine live mammals collected visibly oiled.
哺乳動物的境況好些，只有九分之二顯著受油污染。

4、In fact, they're more dense than the bones of mammals of the same size.
事實上，但是它們比實際相同大小的哺乳動物的骨頭密度要高得多。

5、But when a new area is fueled by rain, the mammals migrate toward it in a set order to exploit it.
但當(dāng)一個新的區(qū)域得到雨水的補給，哺乳動物就會按一定的順序向它遷移以利用它。

6、The grey Wolf had one of the widest distributions of all mammals on the planet.
灰狼在地球上比任何一種動物的分布都要廣泛。

7、Man and most other mammals are viviparous.
人和其他大多數(shù)哺乳動物都是胎生的。

8、Study on the Distribution of the Small Mammals in Dali
大理市小型哺乳動物種群分布的研究

9、The Australian short-beaked echidna, a monotreme, is one of the oldest living mammals on earth.
澳大利亞短吻針鼴，一單孔類動物，是現(xiàn)存最古老的地球上的哺乳動物之一。

10、Aurochs are the heaviest and the biggest land mammals in all European continent.
歐洲野牛是整個歐洲大陸最大也最重的哺乳動物。

11、Most mammals live on land.
大多數(shù)哺乳動物生活在陸地上。

12、any of several plain-colored equine mammals of Asia and northeast Africa.
亞洲和非洲東北部的幾種顏色純凈的馬科哺乳動物。

13、They are mammals and breathe through a blowhole on the top of their head.
他們是哺乳動物和呼吸，通過對氣孔上方的他們的頭部。

14、SOME EOCENE MAMMALS FROM THE UQBULAK AREA OF THE JUNGGAR BASIN,XINJIANG
新疆準噶爾盆地三個泉地區(qū)幾種始新世哺乳類

15、Sea mammals must emerge periodically to breathe.
海生哺乳動物必須不斷地浮現(xiàn)出海面呼吸

16、Koala: The Living teddy BearKoala bears are cute mammals that resemble a cuddly teddy bear.
考拉熊是一種非常可愛的哺乳動物，這和可愛的泰迪熊很像。

17、Either of two large northern Marine mammals having ivory tusks and tough hide over thick blubber.
兩種大型北方哺乳動物之一，有尖牙，厚厚的鯨脂外面有粗糙的硬皮。

18、Sea mammals must periodically emerge from under the sea to breathe.
海生哺乳動物必須不斷 地從海底浮出海面呼吸.

19、She says it's very worrisome to see such a large number of marine mammals die.
她說如此大數(shù)目的海洋動物死亡現(xiàn)象令人擔(dān)憂。

20、This allows these mammals to swim to the surface to get air while at rest;
半腦睡眠可以使這些水生哺乳動物在休息的時候也依然可以游到水面呼吸空氣。

21、Human numerical instincts are not so superior to those of other mammals as is generally believed.
人類對于數(shù)字的天賦并不像人們普遍認為的那樣優(yōu)于其他哺乳動物。

22、Threatened land mammals are concentrated in south and south-east Asia.
受到威脅的陸地哺乳動物主要集中在亞洲南部和東南亞地區(qū)。

23、NEW RECORDS OF CHINESE MAMMALS OF INSECTIVORA
我國食蟲目獸類新紀錄

24、As mammals succeeded in supplanting them, their habitats have been reduced around the globe.
作為哺乳動物成功取代他們，他們的棲息地減少了世界各地。

25、Not a stupid theory—after all, many mammals hibernate—but wrong
這個推論聽起來并不是很愚昧的—不是嗎，許多哺乳動物都冬眠的—可是，錯了。

26、the young of certain carnivorous mammals such as the bear or wolf or lion.
某些食肉動物如熊、狼、或獅子的幼兒。

27、NEW SPECIES AND SUBSPECIES OF MAMMALS FROM SINKIANG, CHINA
新疆獸類新種與新亞種記述

28、mature male of various mammals (especially deer or antelope).
各種成體雄性哺乳動物（特別是雄鹿或公羊）。

29、There are lots of marine mammals such as whales and seals in the sea.
海洋里有許多諸如鯨魚和海豹類的海生哺乳動物。

30、When did mammals appear on the earth?
地球上的哺乳動物起源于何時？