Do you think this is real?

If I remember right, that tiny horse wasn't bred to be that small, she just 'happened'. And her owners have no intentions of breeding her. That's not to say that other people wouldn't try to copy what happened, though...that's the sad part.

That is more or less what I thought, I just wasn't sure.

So then tell me this - can dwarfism happen in horses just as it can in people? Because dwarfism in people cannot be "prevented", it's genetic, right?

I don't believe it can be prevented... the effects can be mitigated through the administration of some hormones. I'm not 100% on this though, I'd have to look through my Physiology book first.