The Miniature Bull Terrier is a small, muscular dog breed that was originally bred for bullbaiting and ratting. Today, they are beloved for their playful and affectionate personalities, as well as their unique appearance. Miniature Bull Terriers have a short, smooth coat that comes in a variety of colors, including white, black, brindle, and fawn. They also have distinctive eggshaped heads and triangular eyes that give them a mischievous expression.