Plus, see how these horses are used by people today.
A fjord horse can grow as tall as 60 inches and weigh up to 1,100 pounds.
Though this horse only grows to 56 inches tall, it can weigh up to 840 pounds. This is a powerful, hardy horse in a small package!
The Japanese Noma is one of the smallest horses in the world. They can grow as tall as 55 inches and weigh up to 450 pounds.
At 47 inches tall, the Yonaguni definitely has a place on the smallest breed of horse list. Yonagunis can weigh as much as 460 pounds.