14 Silly Myths About Dogs That People Still Believe

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Dogs have cleaner mouths than humans.

Close-up of a Dog - Border Collie, mouth opened with the tongue out.

Uh, no. Dogs have disgusting garbage mouths according to the New York Times. If you can't resist those sloppy dog kisses, maybe you should at least brush your dog's teeth.

Dogs and cats are mortal enemies.

Cats and Dogs

You can't teach an old dog new tricks.

The Joy of Living with Pets

Nope! You can (and should!) teach old dogs new tricks. Teach your old dog to twirl, dance, wave, open the door, use the toilet (!!), and even pick up his own toys! Your pup will appreciate the mental stimulation and extra attention from his favorite person.

Dogs only wag their tails when they're happy.

Close-Up Of Ribbon On Dog Tail

Dogs use their tails to communicate many different moods. To really understand what kind of mood a dog is in, look at the whole package — especially the ears and eyes.

Dogs only see in black and white.

Close-Up Of Dog Against Black Background

Contrary to popular belief, dogs can see in color - just not in the same way a human does. If you're curious how your pup sees the world, check out Dog Vision.

Dogs can't look up.

Dog looking at camera with its tongue out

Yes, they can. A popular quote from the 2004 horror comedy, Shaun of the Dead, claimed that dogs can't look up, but it's bollocks.

You can tell if your dog is healthy by his cold, wet nose.

Cropped Hand Holding Dog

Dogs age in human years.

discover the world

Dogs don't age like humans, or even other dogs! Breed, size, and genetic makeup affect how your dog ages.

Dogs can see ghosts.

Scared dog looking aside

The jury is still out on this one. We do know for sure that dogs have much more powerful hearing and sense of smell and can detect changes in the environment unnoticeable to humans. Also we don't know if ghosts are real.

Pit bulls have locking jaws.

Takeo is Done Playing.jpg

That's just silly! Pit bulls jaws work like every other dogs.

Dogs eat grass when they are sick.

Golden retriever eating grass

Dogs just like to eat grass. It's totally normal and nothing to worry about.

Rubbing your dog's nose in his mess teaches him to not do it.

Dog smelling poo

Please do not do this! Your dog will never understand why you're being so mean, and he's never going to understand what you're trying to communicate. There's plenty of information on the right way to potty train your pup, whether he is just stubborn, a puppy, or an older dog.

Dogs don't thrive on a vegan diet.

A young black labrador retriever puppy carries a freshly picked carrot in his mouth.

Unlike cats, dogs are omnivores and do well on a vegan diet. Do some research, and make sure your dog is getting the proper nutrients.

You can leave your dog in a hot car as long as you crack a window.

Dog in the car window

Never do this! Cars heat up quickly, and dogs are susceptible to heat stroke. Never a leave a dog in a hot car. And here's what to do if you see a dog left in a hot car.

43 Golden Retriever Photos That Will Crack You Up

Dogs have cleaner mouths than humans.

Uh, no. Dogs have disgusting garbage mouths according to the New York Times. If you can't resist those sloppy dog kisses, maybe you should at least brush your dog's teeth.