das vs eutherian mammal

das and eutherian mammal both are nouns.

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

As nouns, eutherian mammal is a hypernym of das; that is, eutherian 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
eutherian mammal: mammals having a placenta; all mammals except monotremes and marsupials

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

das (noun)	eutherian 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