30: CHOW CHOW
Despite their unbelievably adorable and cuddly appearance, Chow Chows are actually known to be quite aggressive in behavior. This large canine can approximately reach up to 70 pounds in weight. Even though they are immensely loyal to their owners, they have been known to turn on them in particular situations. The Chow Chow, which was originally from China, was bred for use in hunting and guarding its master in its early years of existence. It is also well known to be very wary of strangers.
