Originally Posted by Tapperjockey
They go into sexual maturity a lot later than horses too (stallions are usually not ready til around 6-7).. so they don't get "studdish" or "mareish" as early.. but when they do... it can be really really bad. They aren't domesticated (unlike mustangs which are not wild, just feral.. easier to revert them to captivity), you've taught them to not be afraid of humans, and yeah, it can end up not good. Many that are ridden are started young (2-4) but as they age, they get harder to handle.. worst male I ever knew was a bottlefed baby. He was like a fricken attack zebra. It's also hard to get "zorses, zonkies, and zonies" because the male zebras generally aren't fond of mares, and the females aren't impressed with the stallions.
They may sexually mature later, but they do get very studdish early on. I've lost count of the amount of young stallions that have tried to kick me for getting to close to their mares. They were about 3 or 4, some even around 2. The mares aren't as bad as the stallions, but none of them are really bad. The worse they've tried to do is kick me as I go past, or try to bite, but a yell soon sends them running into the bush.
My friend's stallion gets better with age. She only started him at about 5 I believe, and he's around 8 now. He's a total sweetheart. He only acts up when you do up the girth, but then again, my 16 year TB mare does that too.