1.Bats are the only mammals to have wings and to achieve sustained flight.
蝙蝠是唯一的有翅膀且能持续飞行的乳动物。
2.Whales are mammals that live in the sea.
鲸是生活在海洋中的乳动物。
3.The whale is the largest mammal in creation.
鲸鱼是所有乳动物中最大的。
4.The boa feeds on birds and small mammals.
蟒主要吃鸟和小的乳动物。
5.Defensin is a widely existed antimicrobial peptide in plants, insects and mammals.
防御素是一种广泛存在于动植物界的抗菌多肽。
6.In regard to animals, Diphyodont evolved into Reptilia, which evolved into mammals.
动物是由两栖进爬虫，再进乳类。
7.There are lots of marine mammals such as whales and seals in the sea.
海洋里有许多诸如鲸鱼和海豹类的海生乳动物。
8.Suckling is an instinct in mammals.
乳是乳动物的本能。
9.Birds differ from mammals.
鸟类与乳动物不同。
10.Most mammals are diphyodonts.
大部分乳类动物有乳齿 齿之别。
11.Most mammals live on land.
大多数乳动物生活在陆地上。
12.Whales belong among the mammals.
鲸鱼属于乳动物。
13.The function of a mammal's fur is to insulate the body.
乳动物皮毛的功能在于使身体保温。
14.Forests are important habitats for birds and, in temperate forests, small mammals which inhabit the dense understorey.
森林对鸟类来说是重要的栖息地，而且在温带森林里，小型的乳动物居住在稠密的森林下层。
15.There is a close analogy between the gills of a fish and the lungs of a mammal.
鱼的鳃与乳动物的肺很相似。
16.Last December scientists announced the probable extinction of the first mammal because of climate change: the white lemuroid possum, now gone from Queensland, Australia.
17.The north of zhungeer is the main district of Central Asia desert mammal population and the mammal in Altai is north subfrigid zone coniferous forest pattern.
18.Eusocial colonies are common among insects such as bees and ants, but the only examples in the mammal world are among furry and the naked mole rats.
群居的族群现象在如蜜蜂和蚂蚁等昆虫世界中很常见，但在乳动物中，只有毛鼹鼠和裸鼹鼠会是这样。
19.Schistosome infected people or other mammals from the discharge of faecal egg, if manure contaminated the water, eggs were brought into the water, hatched miracidium in the water.
感染血吸虫的人或其它乳动物从粪便中排出虫卵，若粪便污染了水，虫卵被带进水中，在水里孵出毛蚴。
20.LDH-C4 is specific to mature testes and spermtozoa of bird and mammal.It is related to metabolic processes that provide energy for motility and survival of spermtozoa.LDH-C4 is an autoantigen.
乳动物。
乳动物
爬虫，再进
齿之别。
