addax african buffalo alcelaphinae animal antelope antilocapridae antilopinae barbary sheep biological classification bison blackbuck bluebuck bos bovid bovinae bovini brocket deer bubalus camel camelid capreolinae cervus cetartiodactyla chacoan peccary chevrotain choeropsis chordate collared peccary common duiker damaliscus deer dibatag dik-dik duiker eutheria even-toed ungulate four-horned antelope gazelle gerenuk giant forest hog giraffe giraffidae grazing antelope grey rhebok hartebeest hippocamelus hippopotamidae hippopotamus hippotragus hirola impala john edward gray klipspringer kting voar laurasiatheria mammal marsh deer moose moschiola mountain goat muntjac musk deer muskox neotragini neotragus nilgai odocoileus okapi oribi oryx ovis pampas deer peccary phacochoerus pig potamochoerus procapra pronghorn pygmy hog raphicerus reduncinae reedbuck reindeer roe deer ruminantia rupicapra saiga antelope saola strepsicerotini suidae suina tahr takin taurotragus texas tibetan antelope tragelaphus tragulus tufted deer tylopoda water chevrotain water deer white-lipped peccary wildebeest