doe vs placental mammal

doe and placental mammal both are nouns.

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

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

doe: mature female of mammals of which the male is called `buck'
placental mammal: mammals having a placenta; all mammals except monotremes and marsupials

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

doe (noun)	placental mammal (noun)
mature female of mammals of which the male is called `buck'	mammals having a placenta; all mammals except monotremes and marsupials