gerenuk vs Litocranius walleri

gerenuk and Litocranius walleri both are nouns.

Word	Noun	Adjective	Verb	Adverb
gerenuk	Yes	No	No	No
Litocranius walleri	Yes	No	No	No

As nouns, gerenuk and Litocranius walleri are synonyms defined as:

gerenuk and Litocranius walleri: slender East African antelope with slim neck and backward-curving horns

gerenuk (noun)	Litocranius walleri (noun)
slender East African antelope with slim neck and backward-curving horns	slender East African antelope with slim neck and backward-curving horns