das vs placental mammal

das and placental mammal both are nouns.

Word	Noun	Adjective	Verb	Adverb
das	Yes	No	No	No
placental mammal	Yes	No	No	No

As nouns, placental mammal is a hypernym of das; that is, placental mammal is a word with a broader meaning than das:

das: any of several small ungulate mammals of Africa and Asia with rodent-like incisors and feet with hooflike toes
placental mammal: mammals having a placenta; all mammals except monotremes and marsupials

Other hypernyms of das include eutherian, eutherian mammal, placental.

das (noun)	placental mammal (noun)
any of several small ungulate mammals of Africa and Asia with rodent-like incisors and feet with hooflike toes	mammals having a placenta; all mammals except monotremes and marsupials