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60 Fun Facts About Dogs You Probably Didn’t Know Before

Golden retriever at the beach. Image via depositphotos.

Dogs are beloved companions and members of our families, but how much do we really know about them? Here are 60 fun and fascinating facts about dogs that might surprise you!

Dogs Have Three Eyelids:

Cute ca de bou puppy with black mask close up. Majorca mastiff or majorcan bulldog. Pet animals. Six month old. Image via depositphotos.

Dogs have an upper lid, a lower lid, and a third lid known as a nictitating membrane, or “haw,” which helps keep the eye moist and protected.

Dogs Can Smell Your Feelings:

Cat and dog. Image via depositphotos.

Dogs can pick up on subtle changes in a person’s scent, which can help them understand how you’re feeling.

A Dog’s Nose Print is Unique:

Old english sheep dog
Picture of an Old English Sheep Dog. Image by Meredith Bannan via Wikimedia

Just like human fingerprints, no two dogs’ nose prints are alike.

Dogs Have About 1,700 Taste Buds:

soldier and dog
030302-N-5362A-003 – CAMP PATRIOT, KUWAIT (March 02, 2003) – – Master at Arms 2nd Class Phllip Darity, a U.S. Navy dog handler, works on training techniques with his dog, Argo at Camp Patriot, Kuwait. Navy police dogs and their Master at Arms handlers are being deployed to assist with force protection at many forward operating areas in support of Operation Enduring Freedom..U.S. Navy photo by Photographer’s Mate 1st Class Arlo K. Abrahamson..CLEARED FOR PUBLIC RELEASE by CDR Jeff Alderson, COMUSNAVCENT/ 5th Fleet PAO. Image by U.S. Navy photo by Photographer’s Mate 1st Class Arlo K. Abrahamson., Public domain, https://upload.wikimedia.org/wikipedia/commons/e/e8/US_Navy_030302-N-5362A-003_Military_working_dog%2C_Camp_Patriot%2C_Kuwait.jpg, via Wikimedia Commons

Humans have roughly 9,000, but dogs don’t mind — they rely more on their sense of smell.

Dogs Sweat Through Their Paw Pads:

bloodhound
The portrait of pair of Bloodhound dogs in the garden. Image by CaptureLight via depositphotos

Dogs primarily regulate their body temperature through panting, but they also sweat through the pads on their paws.

A Dog’s Sense of Smell is at Least 40x Better Than Humans:

Bracco Italiano
Two funny face Bracco Italiano pointer hunting dogs fowling, summer evening shot. Image olgagorovenko via Depositphotos

They have 300 million olfactory receptors in their noses, compared to about six million in humans.

Dogs Can Be Left or Right-Pawed:

the most dog-friendly states
Unlike THC, CBD is non-psychoactive, making it safe for dogs and humans alike. Image by Johann via Pexels

Just like humans, dogs have a preference for using one paw over the other.

Dogs Have Hearing Four Times Better Than Humans:

Old English Mastiff
A large four year old female English Mastiff dog that just had several cysts removed and has fur shaved. Image by adogslifephoto via depositphotos

They can hear higher frequency sounds and detect sounds at much lower decibel levels than humans.

The Basenji Dog Doesn’t Bark:

Basenji
Image by Marius Cern via Unsplash

Instead, it makes a unique sound called a “baroo,” which is more like a yodel.

Dogs Have a ‘Sixth Sense’ for Weather:

Endangered animals African wild dogs puppies in safari park in South Africa.
Endangered animals African wild dogs puppies in safari park in South Africa. Image by shalamov via Depositphotos

Dogs can sense changes in barometric pressure and static electricity, which means they can often detect a storm coming before it happens.

The Greyhound is the Fastest Dog:

Italian Greyhounds
Italian Greyhounds playing. Image by sorokopud via Depositphotos

Greyhounds can reach speeds of up to 45 miles per hour.

Dogs Curl Up to Protect Their Organs:

Border Collie
While black and white is the most common colouring of the Border Collie, the breed appears in just about any colour and pattern known to occur in dogs. Image by Anna Dudkova via Unsplash

This instinct comes from their wild ancestors who needed to protect vital organs from predators.

Dogs Can Learn Over 1,000 Words:

pack of Old German Shepherd Dogs running on the meadow. Image via Depositphotos

The Border Collie named Chaser knows over 1,000 words and can differentiate between objects by name.

The Newfoundland Dog is an Excellent Swimmer:

military working dog
U.S. Air Force Staff Sgt. Ahmad Houston, a military working dog handler assigned to the 378th Expeditionary Security Forces Squadron, controls his K9 during dog handler training at Prince Sultan Air Base, Kingdom of Saudi Arabia, July 1, 2023. The training aimed to prime military working dogs’ response to aggression, to keep them prepared to subdue subjects if needed. Tech. Sgt. Alexander Frank, Public domain, via Wikimedia Commons

With webbed feet and a water-resistant coat, they were bred to help haul nets for fishermen and rescue drowning people.

Dogs Have a Sense of Time:

horse dog painting
Sir Henry William Paget, 1st Marquess of Anglesey (1768-1854) shooting Blackcock on Cannock Chase, with his dog ‘Nep’. William Henry Davis. 1830. Oil on canvas. Public domain, via Wikimedia Commons

They can predict future events, such as regular walk times, and can sense the passing of time.

The Beatles Recorded a Dog Whistle:

Group Jack Russell Terrier Doggies. Four lsmall dogs sitting at home side by side on the couch. thaka11/ Depositphotos
Group Jack Russell Terrier Doggies. Four lsmall dogs sitting at home side by side on the couch. thaka11/ Depositphotos

In the song “A Day in the Life,” the Beatles included a frequency only dogs can hear.

Dogs Can Sniff Out Medical Conditions:

Sick Dog
Battling against all odds. Image by DepositPhotos

Some dogs can detect cancer, diabetes, and seizures in humans.

The Saluki is the Oldest Dog Breed:

Saluki
Saluki. Image via Depositphotos

They appear in ancient Egyptian tombs dating back to 2100 B.C.

Dogs Can Recognize Human Faces:

Old English Mastiff
A beautiful female four year old apricot color English Mastiff dog laying down against a white backdrop. Image by adogslifephoto via depositphotos

Studies have shown that dogs can differentiate between familiar and unfamiliar human faces.

Dalmatian Puppies are Born Completely White:

dalmatian dog
Image by Claudia Peters via Pixabay

Their distinctive spots develop as they grow older.

The Chow Chow and Shar-Pei Have Blue-Black Tongues:

chow chow
chow chow. image: unspaslash

This unique trait sets them apart from other dog breeds.

Dogs Dream Like Humans:

Mexican wolf
Shot at the Minnesota Zoo. A critically endangered Mexican Gray Wolf is kept captive for breeding purposes. Image via User:Marumari, CC BY-SA 3.0 http://creativecommons.org/licenses/by-sa/3.0/, via Wikimedia Commons

They go through similar stages of sleep, including REM, where dreams occur.

The Norwegian Lundehund Has Six Toes:

10 Unusual Dog Breeds
NORGEVIAN LUNDEHUND SPITZ, ADULT STANDING ON GRASS. Lundehund

This breed is equipped with extra toes and flexible joints to help it climb rocky cliffs.

Dogs Can Sense Earthquakes:

A profile view of a big beautiful brown and white Saint Bernard dog walking on the lawn. St Bernard dogs are well known for their intelligence, strength and obedience. Image: Depositphotos

Dogs have been known to detect earthquakes before they happen, thanks to their acute senses.

Puppies Are Born Blind and Deaf:

Australian Shepherd
Two puppies Australian red tricolor and Merle sit in snow and pose. Portrait of two Aussie brothers with funny protruding ears. Brown noses and green intelligent eyes. Image by lightman_pic via depositphotos.com

They rely on their mother and littermates for the first few weeks of life.

Dogs Can Smell Disease:

pony dog painting
A Sportsman with Shooting Pony and Gun Dogs. Edwin W. Cooper. 1815. Oil on canvas. Yale Center for British Art, Public domain, via Wikimedia Commons

Research has shown that dogs can detect certain diseases like cancer by smelling a person’s breath or skin.

The Basenji is Known as the “Barkless Dog”:

Instead of barking, Basenjis make a unique yodel-like sound called a “baroo.”

Dogs Can Read Human Body Language:

Dog Waiting to be Adopted
Dog Waiting to be Adopted. Image from Unsplash

They are adept at picking up on our gestures and body language to understand what we want.

A Dog’s Whiskers Help Them See in the Dark:

Separation Anxiety in Dogs
Separation Anxiety in Dogs. Image: Pexels

Whiskers can detect minute changes in air currents, helping dogs sense nearby objects and movements.

Dogs Can See in Color:

Dog Cries Every Time He's Touched
Human hand is touching a cute little doggie paw through a fence of a adoption centre. Via Depositphotos

While not as vivid as human vision, dogs can see shades of blue and yellow.

Dogs Use Their Tails to Communicate:

A purebred Golden Retriever dog running without leash outdoors in the nature on a sunny day. Image via depositphotos.

Different tail wags can convey a range of emotions, from happiness to anxiety.

Dogs Have a “Second Nose”:

German Shepard laying on grass
German Shepard laying in flowers. Image via Depositphotos

Known as the vomeronasal organ or Jacobson’s organ, it helps them detect pheromones.

Dogs Can Help with Mental Health:

Yorkshire Terrier
Yorkshire terrier. Image via Roxyuru, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Therapy dogs are used to help people cope with stress, anxiety, and other mental health issues.

Dogs Have Been Domesticated for Over 15,000 Years:

Wolves in Yellowstone National Park.
Wolves in Yellowstone National Park. By NPS Photo – NPGallery, Public Domain, https://commons.wikimedia.org/w/index.php?curid=80049851

They are believed to be the first domesticated animals.

The Irish Wolfhound is the Tallest Dog Breed:

Dachshund Vs. Irish Wolfhound
Irish Wolfhound dog lying on a white background. Via Depositphotos

They can stand up to 7 feet tall on their hind legs.

Dogs Have an Innate Pack Mentality:

wolfs hunt in packs
Wolfs hunts in packs. Image via Mariofan13, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

This makes them highly social animals that thrive on companionship.

A Dog’s Nose is Wet to Help Absorb Scent Chemicals:

dog nose
dog nose. unsplash

The moisture on their nose helps them smell better.

Dogs Can Understand Human Emotions:

German Shepard Pretends To Be Asleep To Get Out Of Bath Time
German Shepard Pretends To Be Asleep To Get Out Of Bath Time. Image by @Weratedogs via Instagram

They can pick up on emotional cues through our voices, body language, and facial expressions.

The Bloodhound’s Sense of Smell is Admissible in Court:

bloodhound
The portrait of pair of Bloodhound dogs in the garden. Image by CaptureLight via depositphotos

Their tracking skills are so accurate that they’ve been used in court as evidence.

Dogs Have Been to Space:

Devoted friend. Close-up muzzle of beautiful Cocker Spaniel dog isolated over white background. Concept of motion, movement, pets love, animal life. Looks happy, delightful, calm. Via: Depositphotos.

The first living being in space was a dog named Laika, sent by the Soviet Union in 1957.

Dogs Can Be Trained to Detect Bed Bugs:

bed bug bites
Bedbugs colony on the matress cloth macro. Disgusting blood-sucking insects. Adult insects, larvae and eggs. Traces of vital activity of the insects. Image via Depositphotos

Their acute sense of smell makes them perfect for this job.

Dogs Can Get Jealous:

Fawn dog
Fawn and white Welsh Corgi puppy standing on rear legs and sticking out the tongue. Image via Huoadg5888Minor edits made by Subsidiary account, CC0, via Wikimedia Commons

Studies show that dogs can feel jealousy when their owners show affection to other dogs.

Labrador Retriever
Schwarzer Labrador Retriever. By Losch – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=44397435

They’ve held this title for many years due to their friendly and outgoing nature.

Dogs Can Smell Fear:

Golden Retriever
A Golden Retriever lying on grass. Image via Barras, CC BY 3.0 https://creativecommons.org/licenses/by/3.0, via Wikimedia Commons

They can detect the scent of adrenaline, which is released when a person is scared.

Dogs Can Be Heroes:

border collie plays jenga
Border Collies are, on average, medium-sized dogs with a moderate amount of coat, which is often thick and prone to shedding. Image by Anna Dudkova via Unsplash

There are countless stories of dogs saving human lives through their bravery and loyalty.

The Great Dane is the Tallest Dog Ever Recorded:

great dane
Great Dane or German Mastiff laying in Dandelion’s Flowers, (Old Standard Breed with Cut Ears). Image by slowmotiongli via depositphotos.com

A Great Dane named Zeus held the record, standing at 44 inches tall at the shoulder.

Dogs Can Track Time by Scent:

golden retriever greeting a beach
A golden retriever greeting the beach! Image by mvaligursky via depositphotos.com

They can tell how long you’ve been gone by the strength of your scent.

A Dog’s Hearing is 10 Times More Accurate Than Humans:

German Shepard
An image of a German Shepard laying on grass via Deposit Photo

They can hear sounds at much higher frequencies.

Dogs Have Been Used in Warfare:

Military dogs
Portrait of smiling soldier and military dog looking straight to the camera. Image by alex.wolf via depositphotos.com

They’ve served as messengers, scouts, and even in search and rescue operations.

Dogs Can Recognize Over 250 Words and Gestures:

pet dog and owner via unsplash
pet dog and owner via unsplash

They have the intelligence of a two-year-old child.

The Dalmatian is Born Without Spots:

dog
Grey, black and brown puppies breed Neapolitana Mastino. Dog handlers training dogs since childhood. Via Deposiphotos.

They develop their spots as they mature.

Dogs Have a Variety of Barks:

Group Jack Russell Terrier Doggies. Four lsmall dogs sitting at home side by side on the couch. thaka11/ Depositphotos
Group Jack Russell Terrier Doggies. Four lsmall dogs sitting at home side by side on the couch. thaka11/ Depositphotos

Each bark can mean something different, from alerting to a threat to calling for attention.

Dogs Can Read Human Intentions:

dog
Young couple with their dog in the park. Image by Deklofenak via depositphotos.com

They are adept at understanding our intentions, even when we don’t speak.

Dogs Have a Dominant Paw:

Separation Anxiety in Dogs
Separation Anxiety in Dogs. Via Pexels

Just like humans, dogs can be left- or right-pawed.

A Dog’s Mouth is Not Cleaner Than a Human’s:

Lancashire Heeler
A closeup of a cute Lancashire Heeler dog jumping and playing on the sunny grass park in London. Image by wirestock_creators via Depositphotos

This is a myth; both contain bacteria that are unique to each species.

The Australian Shepherd Isn’t from Australia:

Australian Shepherd
Two puppies Australian red tricolor and Merle sit in snow and pose. Portrait of two Aussie brothers with funny protruding ears. Brown noses and green intelligent eyes. Image by lightman_pic via depositphotos.com

This breed was actually developed in the United States.

Dogs Can Understand Human Pointing:

rottweiler
Handsome Rottweiler sitting in the house in the garden. Image via Depositphotos

They are one of the few animals that can understand the gesture of pointing.

Dogs Have a Social Hierarchy:

The golden retriever standing playing on the grass. Image via depositphotos.

They establish a social hierarchy through various behaviors and signals.

A Dog’s Fur Can Change Color with Age:

golden retriever
Image by minka2507 via Pixabay

Just like humans, dogs can go gray or have their fur color change as they age.

Dogs Can Sense Human Diseases:

Incident That Claimed an Innocent Dog's Life
Portrait of a german shepard mix. VIa Depositphotos

Some trained dogs can detect diseases like cancer and diabetes by smelling changes in a person’s body chemistry.

These fun facts about dogs reveal just how fascinating and complex our canine companions are. From their incredible senses to their unique behaviors, dogs continue to amaze and enrich our lives every day.

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