▁while ▁the ▁black ▁w ilde be est ▁tends ▁to ▁res ide ▁exclus ively ▁in ▁open ▁grass land ▁areas . ▁In ▁some ▁areas , ▁the ▁blue ▁w ilde be est ▁migr ates ▁over ▁long ▁distances ▁in ▁the ▁winter , ▁whereas ▁the ▁black ▁w ilde be est ▁does ▁not . ▁The ▁milk ▁of ▁the ▁female ▁black ▁w ilde be est ▁contains ▁a ▁higher ▁protein , ▁lower ▁fat , ▁and ▁lower ▁la ct ose ▁content ▁than ▁the ▁milk ▁of ▁the ▁blue ▁w ilde be est . ▁ ▁Wil de be est ▁can ▁live ▁more ▁than ▁ 4 0 ▁years , ▁though ▁their ▁average ▁lif es pan ▁is ▁around ▁ 2 0 ▁years . ▁ ▁Distribution ▁and ▁habitat ▁Wil de be est ▁inhab it ▁the ▁pla ins ▁and ▁open ▁wood lands ▁of ▁parts ▁of ▁Africa ▁south ▁of ▁the ▁Sah ara . ▁The ▁black ▁w ilde be est ▁is ▁native ▁to ▁the ▁southern most ▁parts ▁of ▁the ▁continent . ▁Its ▁historical ▁range ▁included ▁South ▁Africa , ▁E sw at ini , ▁and ▁Les oth o , ▁but ▁in ▁the ▁latter ▁two ▁countries , ▁it ▁was ▁h unted ▁to ▁ext inction ▁in ▁the ▁ 1 9 th ▁century . ▁It ▁has ▁now ▁been ▁re int rodu ced ▁to ▁them ▁and ▁also ▁introduced ▁to ▁Nam ib ia , ▁where ▁it ▁has ▁become ▁well ▁established . ▁It ▁inhab its ▁open ▁pla ins , ▁grass lands , ▁and ▁Kar oo ▁shr ub lands ▁in ▁both ▁ste ep ▁mountain ous ▁regions ▁and ▁lower ▁und ulating ▁hills ▁at ▁alt itudes ▁varying ▁between ▁. ▁In