How do you tell a horse from a pony? A pony isn’t a baby horse. It is a little horse. Ponies can get up to 10 to 15 hands. A baby boy horse is a colt. A baby girl horse is a filly. I want a filly. A dotted black and white Appaloosa. She is my dream horse. I would name her Apple. An Appaloosa is a horse, not a pony. Some more breeds of horses are Clevelandbay, Fjord, Holsteiner, Rhinelander, Gotland,Haflinger, Pottock, Landais,Dales,and Icelandic horse. Although the Icelandic horse sounds like a horse, it is a pony. Any horse or pony breeds will be in a different color than regular words.