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30 Fun Facts About Dogs

Find out why your dog acts the way he does.


The "smell" center of a dog's brain is 40 times larger than yours

Dogs can smell thousands of times better than humans. Their noses have millions more scent receptors—for example, a human nose averages 5 million while a Dachshund's nose has 125 million—making them useful in sniffing out drugs, dead bodies, bed bugs, explosives, and more. Find out more secrets your pet isn't telling you.

beautiful close-up dog from behind viewNatee K Jindakum/Shutterstock

Their ears are pretty impressive too

Dogs' sense of smell might be pretty amazing, but don't forget about their hearing! Everything from the positioning of their ears to the muscles in them helps them pick up a whole host of sounds that humans can't pick up. In fact, the most popular explanation for why dogs tilt their heads is that they're trying to locate the source of a sound. This dog's senses were so special that they saved a boy's life!

My real friend portraitSoloviova Liudmyla/Shutterstock

But their sense of taste is much less developed

Dogs have approximately a sixth of the number of taste buds that humans have (1,700 taste buds to humans' approximately 9,000). This is why dogs will scarf rotting food scraps as voraciously as they'll eat a bowl of kibble or a hunk of steak. Their less discriminatory sense of taste also has to do with their evolutionary instincts, carried over from when they would scavenge in the wild. These famous shelter dogs will warm your heart.


No two dog noses are the same

A dog's nose is the equivalent of a human fingerprint, with each having a unique pattern of ridges and creases. Plus, find out the reason dogs' noses are always wet.

iStock/Li Ki Goh

Dogs dream like people

If you've ever noticed your pooch twitching in her sleep, this probably means she's dreaming. Researchers found that dogs have similar sleep patterns and brain activity as humans, and that small breeds tend to dream more than large ones. Psychology Today suggests they're probably imagining familiar activities like playing outside or chasing their tail. Learn more dog facts about dog dreams with these things you can learn just from your pup's sleeping position.


Dogs are as smart as a two-year-old baby

According to canine researcher and author Stanley Coren, your toddler and pup are about on par when it comes to brains. He also explained that man's best friend can count, understand over 150 words, and even trick people or other dogs to get treats. Intelligence varies based on breed—Border collies are the smartest. Check out the full ranking of the smartest dogs.


Dogs only mate twice a year

Unspayed females only go into heat twice a year, so dog breeders need to plan carefully. Find out some more things your veterinarian won't tell you.


Tail wagging has its own language

If your dog excitedly wags their tail, it means they're happy to see you, right? Not necessarily. According to, dogs wag their tails to the right when they're happy and to the left when they're frightened. Wagging low means they're insecure, and rapid tail wagging accompanied by tense muscles or dilated pupils can signal aggression. Find out more fun facts about dogs' tails and what they're trying to tell you.


Puppies are born blind and deaf

Newborn dogs are still developing, according to Psychology Today, so their ear canals and eyes are still closed. Most puppies open their eyes and respond to noises after about two weeks. These are the things you absolutely need before you get a puppy.


Dogs have a "sixth sense"

In a 2010 poll, 67 percent of pet owners reported their pets acting strangely right before a storm, and 43 percent said their pets behaved oddly right before something bad happened. The top clues? Whining, erratic behavior, or trying to hide in a safe place. There are even reports that dogs can sense illnesses, like cancer. Check out more superpowers that all dogs have.

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