1.
Whales fall under the class of mammals.
鲸属于哺乳类动物。
2.
The whale is the largest mammal in creation.
鲸是世上最大的哺乳类动物。
3.
All mammals breathe air.
哺乳类动物全都呼吸空气。
4.
MAMMALS FROM THE MIDDLE EOCENE. KUANCHUANG FORMATION OF XINTAI, SHANDONG
山东新泰中始新世化石哺乳类新材料
5.
Bears are large carnivorous mammals.
杂食性大型哺乳类动物，以肉食为主。
6.
Review About Mammals Spermatozoon Capacitation;
关于哺乳类动物精子获能的研究进展
7.
Most mammals are diphyodonts.
大部分哺乳类动物有乳齿及永久齿之别。
8.
Mammals arose from a fairly primitive reptile in the Mesozoic era.
哺乳类起源于中生代宛若原始的爬虫类。
9.
that the relationship between the numbers of Aves and Amphibian or Reptile and between the numbers of Mammalia and Amphibian are normal correlativity.
鸟类与两栖类和爬行类以及哺乳类与两栖类为最大的正作用影响.
10.
Amazingly little is known about human lactation, or nursing.
对人类哺育婴儿或哺乳所知甚少。
11.
fishes; amphibians; reptiles; birds; mammals.
鱼类；两栖动物类；爬虫类；鸟类；哺乳动物类。
12.
The fur or hair of this mammal.
獾的皮毛这类哺乳动物的皮或毛
13.
Any of various similar mammalian diseases.
温热一种类似的哺乳动物疾病
14.
(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。
15.
amphibious African insectivorous mammal that resembles an otter.
非洲两栖食虫哺乳动物，与水獭类似。
16.
Whale is not a fish; it is a mammal.
鲸不是鱼类，它是一种哺乳动物。
17.
Whales are classified as mammals, not fish.
鲸鱼被划分为哺乳动物，而不是鱼类。
18.
Suckling is an instinct in mammals.
哺乳是哺乳动物的本能。