Minecraft wiki entry for Breeding, associated text: Baby animals are smaller variations of their parents, having small bodies, relatively big heads, and faster walking speeds. Their sounds are the same as their adult variants but 50% faster and are pitched up by 6 semitones. Lambs cannot be sheared for their wool, chicks do not lay eggs, calves and mooshroom calves cannot be milked, and horses, mules, donkey foals, piglets and stridlings cannot be saddled or ridden. They do not drop loot or experience if killed (excluding baby zombies and their variants).