humpback whale vs baleen whale

humpback whale and baleen whale both are nouns.

Word	Noun	Adjective	Verb	Adverb
humpback whale	Yes	No	No	No
baleen whale	Yes	No	No	No

As nouns, baleen whale is a hypernym of humpback whale; that is, baleen whale is a word with a broader meaning than humpback whale:

humpback whale: large whalebone whale with long flippers noted for arching or humping its back as it dives
baleen whale: whale with plates of whalebone along the upper jaw for filtering plankton from the water

Other hypernyms of humpback whale include whalebone whale.

humpback whale (noun)	baleen whale (noun)
large whalebone whale with long flippers noted for arching or humping its back as it dives	whale with plates of whalebone along the upper jaw for filtering plankton from the water