5. Bedlington Terrier

The unusual Bedlington terrier could easily be described as a wolf in sheep’s clothing – they look like gentle little lambs, but they can be ferocious dogs who don’t have a problem with attacking and killing other animals, including dogs their own size.

Obviously, they are no strangers to killing cats and other small animals. Bedlington terriers are also very fast (their speed is compared to the speed of the whippet), and once they decide to chase after prey, there’s nothing you can do.

They have to be properly introduced to other canines, and can even learn to live along with cats – if they are introduced at an early age and trained not to harm your feline companion. Though they may even grow fond of your cat that in no way implies that other cats and small animals are safe. He can love your cat to the moon and back, but a random outdoors cat will always be just lunch to them.