Sylvilagus floridanus vs eastern cottontail

Sylvilagus floridanus and eastern cottontail both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sylvilagus floridanus	Yes	No	No	No
eastern cottontail	Yes	No	No	No

As nouns, Sylvilagus floridanus and eastern cottontail are synonyms defined as:

Sylvilagus floridanus and eastern cottontail: widely distributed in United States except northwest and far west regions

Sylvilagus floridanus (noun)	eastern cottontail (noun)
widely distributed in United States except northwest and far west regions	widely distributed in United States except northwest and far west regions