Fossil records suggest these two species diverged about one million years ago, resulting in a northern and a southern species. The blue wildebeest remained in its original range and changed very little from the ancestral species, while the black wildebeest changed more as adaptation to its open grassland habitat in the south. The most obvious ways of telling the two species apart are the differences in their colouring and in the way their horns are oriented.
Fossil records suggest these two species diverged about one million years ago, resulting in a northern and a southern species The blue wildebeest remained in its original range and changed very little from. the ancestral species while the black wildebeest changed more as adaptation to it,s open grassland habitat in the south. The most obvious ways of telling the two species apart are the differences in their colouring and in the way their horns are oriented.