Why has the Zebra never been tamed?

The answer to that is ....

that a zebra is a wild animal and also a zoo animal so if it was wild like some, its perfectly natural to be scared of other things such as the sheep they were not meant to be tame it justed happened with human contact! Zebras normal life is not to be tame to human contact. Yes i know zoo zebras are tame but that is different! Because most of them grew up with human contact if you doing belive me then go to the zoo and ask the zoo keeper.

Thank you