[Republican Party Reptile]

Not that simple, Zebra may be part of the equine family, but the temperament of Zebra just weren't suited for domesticating (many a European early colonizer in Africa tried, but failed). Same goes for elephant - African elephants are larger, meaner, and much more ill tempered than their Asian cousins and just didn't lend itself to domestication (which is why you only see Asian elephants in circus shows, not African ones).

[Lucius Cornelius Sulla]

why you only see Asian elephants in circus shows, not African ones

Actually a couple of decades afo, the last time I went to the Ringling Brothers, they had a couple of African Elephants among their herd of Asian Elephants. They did not let the customers near them, of course.