bushbaby vs lemur

bushbaby and lemur both are nouns.

Word	Noun	Adjective	Verb	Adverb
bushbaby	Yes	No	No	No
lemur	Yes	No	No	No

As nouns, lemur is a hypernym of bushbaby; that is, lemur is a word with a broader meaning than bushbaby:

bushbaby: agile long-tailed nocturnal African lemur with dense woolly fur and large eyes and ears
lemur: large-eyed arboreal prosimian having foxy faces and long furry tails

bushbaby (noun)	lemur (noun)
agile long-tailed nocturnal African lemur with dense woolly fur and large eyes and ears	large-eyed arboreal prosimian having foxy faces and long furry tails