In the same way that man wasn’t drastically different evolution wise from that period to now (science says we got a little shorter, but thats about it genetically) , horses were not some wild precursor species here. They were just horses. Potentially stockier, but still horses
As the other comment pointed out, horses used to be found in the America’s, but had since gone extinct before Europeans reintroduced them.
Horse-like ancestors, not horses. And they were 10,000 years ago.
In the same way that man wasn’t drastically different evolution wise from that period to now (science says we got a little shorter, but thats about it genetically) , horses were not some wild precursor species here. They were just horses. Potentially stockier, but still horses