Kobus leche vs waterbuck

Kobus leche and waterbuck both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kobus leche	Yes	No	No	No
waterbuck	Yes	No	No	No

As nouns, waterbuck is a hypernym of Kobus leche; that is, waterbuck is a word with a broader meaning than Kobus leche:

Kobus leche: tawny-colored African antelope inhabiting wet grassy plains; a threatened species
waterbuck: any of several large African antelopes of the genus Kobus having curved ridged horns and frequenting e.g. swamps and rivers

Kobus leche (noun)	waterbuck (noun)
tawny-colored African antelope inhabiting wet grassy plains; a threatened species	any of several large African antelopes of the genus Kobus having curved ridged horns and frequenting e.g. swamps and rivers