sloth bear vs Ursus ursinus

sloth bear and Ursus ursinus both are nouns.

Word	Noun	Adjective	Verb	Adverb
sloth bear	Yes	No	No	No
Ursus ursinus	Yes	No	No	No

As nouns, sloth bear and Ursus ursinus are synonyms defined as:

sloth bear and Ursus ursinus: common coarse-haired long-snouted bear of south-central Asia

Other synonyms of sloth bear include Melursus ursinus.

sloth bear (noun)	Ursus ursinus (noun)
common coarse-haired long-snouted bear of south-central Asia	common coarse-haired long-snouted bear of south-central Asia