▁an ▁ant el ope ▁in ▁the ▁genus ▁Con no cha etes . ▁It ▁belongs ▁to ▁the ▁family ▁B ov idae , ▁which ▁includes ▁ant el op es , ▁cattle , ▁go ats , ▁sheep , ▁and ▁other ▁even - to ed ▁horn ed ▁ung ul ates . ▁Con no cha etes ▁includes ▁two ▁species , ▁both ▁native ▁to ▁Africa : ▁the ▁black ▁w ilde be est ▁or ▁white - ta iled ▁g nu ▁( C . ▁g nou ), ▁and ▁the ▁blue ▁w ilde be est ▁or ▁br ind led ▁g nu ▁( C . ▁t aur inus ). ▁▁ ▁F oss il ▁records ▁suggest ▁these ▁two ▁species ▁diver ged ▁about ▁one ▁million ▁years ▁ago , ▁resulting ▁in ▁a ▁northern ▁and ▁a ▁southern ▁species . ▁The ▁blue ▁w ilde be est ▁remained ▁in ▁its ▁original ▁range ▁and ▁changed ▁very ▁little ▁from ▁the ▁ancest ral ▁species , ▁while ▁the ▁black ▁w ilde be est ▁changed ▁more ▁as ▁adaptation ▁to ▁its ▁open ▁grass land ▁habitat ▁in ▁the ▁south . ▁The ▁most ▁obvious ▁way ▁of ▁telling ▁the ▁two ▁species ▁apart ▁are ▁the ▁differences ▁in ▁their ▁colour ing ▁and ▁in ▁the ▁way ▁their ▁horn s ▁are ▁orient ed . ▁ ▁In ▁East ▁Africa , ▁the ▁blue ▁w ilde be est ▁is ▁the ▁most ▁abund ant ▁big - game ▁species ; ▁some ▁populations ▁perform ▁an ▁annual ▁migration ▁to ▁new ▁gra zing ▁grounds , ▁but ▁the ▁black ▁w ilde be est ▁is ▁merely ▁nom adic . ▁Bre eding ▁in ▁both ▁takes ▁place ▁over ▁a ▁short ▁period ▁of ▁time ▁at