哺乳纲

山西垣曲盆地中始新世的原翼齿兽（鬣齿兽科，肉齿目，哺乳纲）化石

Propterodon ( hyaenodontidae , creodonta , mammalia ) from the middle Eocene of Yuanqu basin , Shanxi Province

我最后断定这动物是属于脊推动物门，哺乳纲，唯一豚鱼亚纲，鱼类，鲸鱼目属。

From this I finally concluded that it belonged to the branch Vertebrata , class Mammalia , subclass Monodelphia , group Pisciforma , order Cetacea , family ...

哺乳纲动物绵羊和大白鼠自身血红蛋白相互作用的研究及意义

A Study of Interaction of Self-hemoglobin in Sheep and in Rats and Its Significance for Evolution of Species

专家告诉我们大熊猫在动物分类中属哺乳纲食肉目动物，大熊猫吃肉其实属于正常范围。

Experts tell us pandas in a lactating animal classification program Carnivora animals , meat pandas are actually normal range .

高原鼠兔生活史总特征对高原鼠兔生活史总特征的研究结果基本支持本文提出的假设，即与哺乳纲其它种类相比较，高原鼠兔适合度处于较低水平；

The results support our hypothesis : ( 1 ) the fitness of plateau pika population is at relatively low level compared with those of other mammal species ;

使用“生殖上皮”这一概念，一定程度上将鱼纲和鸟纲，哺乳纲的性腺发育统一起来，便于比较它们的异同。

By using the concept of " germinal epithelium ", the researches on the gonadal development of Pisces , Aves and Mammalia were unifying to some extent then their characters were convenient for compared .