Minecraft wiki entry for Horse, associated text: Each horse variant has unique features and markings, and a foal (baby) version. Adult horses are 1.4 blocks wide and long, and 1.6 blocks high. Foals start at half the size of adults, and in Bedrock Edition, get progressively bigger as they age. Unlike wolves and cats, the appearances of horses do not change once they have been tamed, though tame horses may be differentiated by giving them equipment.