Thus , in zoology , the ground of division adopted in the classification of the mammalia is mainly afforded by their teeth and claws .
譬如,在动物学里,关于哺乳动物的分类所采取的原则,是以动物的牙齿和趾爪为准的。
Some people are justifiably terrified at what the government could do to healthcare , should it get its claws even further into it . Others demand a public option for health insurance and are adamant that healthcare be treated as yet another absolute entitlement .