23. Cane Corso
The Cane Corso is a well muscled dog that can weigh anywhere between 99 to 150 pounds. The breed is known as a true and quite possibly the last of the coursing Mastiffs and is a descendant of the Canis Pugnax, which were dogs used by the Romans in warfare.
22. Bull Terrier
Known for their large egg shaped heads, Bull Terriers are exceptionally strong dogs with a #1 ranking in pound-for-pound lean muscle tissue. Though not particularly aggressive, the breed is known to have a strong “prey drive” which makes the Bull Terrier a dangerous dog towards smaller animals. Also See: 15 Celebrities who look exactly like another celebrity – You need to see their pictures!