pack rat vs Neotoma cinerea

pack rat and Neotoma cinerea both are nouns.

Word	Noun	Adjective	Verb	Adverb
pack rat	Yes	No	No	No
Neotoma cinerea	Yes	No	No	No

As nouns, pack rat and Neotoma cinerea are synonyms defined as:

pack rat and Neotoma cinerea: any of several bushy-tailed rodents of the genus Neotoma of western North America; hoards food and other objects

Other synonyms of pack rat include bushytail woodrat, packrat, trade rat.

pack rat (noun)	Neotoma cinerea (noun)
any of several bushy-tailed rodents of the genus Neotoma of western North America; hoards food and other objects	any of several bushy-tailed rodents of the genus Neotoma of western North America; hoards food and other objects
someone who collects things that have been discarded by others