"Wasn't there something about an ancestor of modern horses?"
The one next to it is Mesohippus, ancestor of all modern horses.
All of these types were bred together to create the modern Boulonnais horse.
The modern horse in captivity cannot do this: he remains anxious.
The modern horse has a strong build, good bone, and are quite similar to the Thoroughbred.
These features are similar to those of some other modern horse breeds thought to have ancient roots.
The modern horse is thought to be five million years old.
In short, these three modern horses displayed early on what in racing is called class.
It is believed to be a close relative to the group from which modern horses evolved.
Depending on breed, management and environment, the modern domestic horse has a life expectancy of 25 to 30 years.