1.
Suckling is an instinct in mammals.
哺乳是哺乳动物的本能。
2.
animals that nourish their young with milk.
用乳汁哺育幼子的哺乳动物。
3.
biology of reproduction in mammals
哺乳动物生殖生物学
4.
The branch of zoology that deals with mammals.
哺乳动物学动物学中研究哺乳动物的一个分支
5.
European Association for Aquatic Mammals
欧洲水生哺乳动物协会
6.
The fur of one of these mammals.
这些哺乳动物的皮.
7.
mammalian thermoregulation.
哺乳动物的体温调节
8.
The fur of one of these carnivorous mammals.
这种食肉哺乳动物的毛
9.
A whale is a kind of mammal.
鲸是一种哺乳动物。
10.
a mammal having nails or claws.
有指甲或爪的哺乳动物。
11.
Among mammals whales have the greatest mass.
哺乳动物中以鲸鱼最大。
12.
A hoofed mammal of the order Perissodactyla.
奇蹄目的带蹄哺乳动物
13.
Lactation is the final phase of the reproductive cycle of mammals.
泌乳是哺乳动物繁殖周期的最后阶段。
14.
The young of mammals are suckled on milk secreted by the mother's mammary glands.
哺乳动物的幼仔是吸乳的，其乳汁母乳腺分泌的。
15.
the branch of zoology that studies mammals.
动物学中研究哺乳动物的分支。
16.
(zoology) of or relating to or belonging to mammals of the order Artiodactyla.
（动物学）属于或关于偶蹄类哺乳动物。
17.
the paleobiology of ancient mammals.
古动物学中研究古哺乳动物的分支。
18.
The female of various mammals, such as the hare, goat, or kangaroo.
哺乳动物的母性哺乳动物如兔、山羊或袋鼠等的母性