ant bear vs placental mammal

ant bear and placental mammal both are nouns.

Word	Noun	Adjective	Verb	Adverb
ant bear	Yes	No	No	No
placental mammal	Yes	No	No	No

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

ant bear: nocturnal burrowing mammal of the grasslands of Africa that feeds on termites; sole extant representative of the order Tubulidentata
placental mammal: mammals having a placenta; all mammals except monotremes and marsupials

Other hypernyms of ant bear include eutherian, eutherian mammal, placental.

ant bear (noun)	placental mammal (noun)
nocturnal burrowing mammal of the grasslands of Africa that feeds on termites; sole extant representative of the order Tubulidentata	mammals having a placenta; all mammals except monotremes and marsupials
large shaggy-haired toothless anteater with long tongue and powerful claws; of South America