common rorqual vs Balaenoptera physalus

common rorqual and Balaenoptera physalus both are nouns.

Word	Noun	Adjective	Verb	Adverb
common rorqual	Yes	No	No	No
Balaenoptera physalus	Yes	No	No	No

As nouns, common rorqual and Balaenoptera physalus are synonyms defined as:

common rorqual and Balaenoptera physalus: large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific

Other synonyms of common rorqual include fin whale, finback, finback whale.

common rorqual (noun)	Balaenoptera physalus (noun)
large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific	large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific