gray whale vs Eschrichtius gibbosus

gray whale and Eschrichtius gibbosus both are nouns.

Word	Noun	Adjective	Verb	Adverb
gray whale	Yes	No	No	No
Eschrichtius gibbosus	Yes	No	No	No

As nouns, gray whale and Eschrichtius gibbosus are synonyms defined as:

gray whale and Eschrichtius gibbosus: medium-sized greyish-black whale of the northern Pacific

Other synonyms of gray whale include devilfish, Eschrichtius robustus, grey whale.

gray whale (noun)	Eschrichtius gibbosus (noun)
medium-sized greyish-black whale of the northern Pacific	medium-sized greyish-black whale of the northern Pacific