Rottweiler

Height: 22 to 27 inches at shoulder

Weight: 85 to 130 pounds (males average 112 pounds, females average 100 pounds)

Coat: short and harsh

Life span: 8 to 11 years

Like the mythical Greek hero Hercules, the Rottweiler is strong and true with a loving heart. Affectionately called Rotties or Rotts, the breed originated in Germany, where it was used to drive cattle and pull carts for farmers and butchers. That heritage is reflected in the Rottie's broad chest and heavily muscled body. When he moves, he displays strength and stamina, but when you look into his eyes you see warm, dark-brown pools reflecting a mellow, intelligent, alert, and fearless expression.

A well-bred Rottweiler is calm and confident. He's typically aloof toward strangers, but never timid or fearful. Rottweilers exhibit a "wait-and-see" attitude when confronted with new people and situations. When these characteristics come together as they should, the Rottweiler is a natural guard dog with a mellow disposition who is successful not only in police, military, and customs work, but also as a family friend and protector.

Rotties have a natural instinct to protect their families and can be ferocious in their defense. It's essential to channel their power and protectiveness by providing early socialization, firm, fair, consistent training and leadership, and a regular job to perform. When this doesn't happen, Rottweilers can become dangerous bullies rather than the companionable guardians they're meant to be.