on the other hand, I recall a story of someone who had a were creature epidemic all over the world. Every village had dozens of were-lairs around it and hardly any normal population at all. Each full moon all the were whatevers came to the village and tried to infect those not infected yet. A nightmare to live there, I imagine. Something similar might happen with the were-zebra (not saying it did, but it can), and each w-zebra visiting was in fact a different one
I can imagine that happening in some older worlds, I had one where I couldn't wander more than five steps in adv. mode without coming across a were-bear.
But this was a small world generated using the advanced-world-gen to have many (semi)megas, no titans or vamps, and only a handful were-creature types. Unless I had the luck to get two were-zebras with the exact same name, it was unlikely that it was two different ones.
I think I even posted about it before.The werezebra Cog Kubukmebzuth has come! A large zebra twisted into humanoid form!
Apparently he had escaped the cage I left him in in my previous fort and came all the way across the world for vengeance!
Shame he wandered straight into a herd of wild unicorns...
The only other were-beast that I know of, a were-antelope, was killed in my fort. Her legends mode entry was interesting, her husband was one of the only necromancers in the world, and in the countless years she rampaged she never infected or even killed another person.