When you sit down and place a hand on your dog’s coat, something real happens. Your blood pressure drops the moment he lies down next to you.
You might look into those eyes and wonder what a pup sees. The reality is that dogs see a world of color, not just black and white.
These 13 facts explain the hidden senses and unique traits of the animal sleeping at your feet.
1. The Most Popular Pets
A global GfK study from 2016, covering 27,000 owners across 22 countries, shows that 33% of households worldwide own dogs.
They outrank cats at 23% and fish at 12% to take the top spot globally.
While 57% of people have at least one pet, the numbers change a lot depending on where you look. Dogs live in 66% of homes in Argentina, compared to just 14% in Hong Kong.
Right now, there are roughly 471 million pet dogs worldwide, and that number is growing fast in the U.S. and other regions.
2. What Science Says?
Azabu University proved in 2015 that this bond is a two-way street. When you and your companion look into each other’s eyes, oxytocin levels rise in both.
This “love hormone” spikes just from sharing a simple look with your pet.
I know this firsthand, because when I play with my Sarplaninac dogs, I feel a pure joy that words cannot describe.
3. Journey of Faith
In March 1990, Bill Irwin set out as the first blind hiker to tackle the Appalachian Trail, a 2,167-mile trek from Georgia to Maine. His guide dog, Orient, was specially trained to help him navigate the rough wilderness terrain.
They spent eight months traveling through 14 states to complete the entire route.
When they finally reached Maine that November, Irwin credited his faith, thanking God above all else for helping them make it through the grueling journey.
4. Greyhound vs Cheetah
In a race, a Greyhound can beat a cheetah. While the big cat can reach an incredible 70 mph, it runs out of steam after just 200 yards. After this sprint, the cat needs to rest for around 30 minutes before going hunting again.
The Greyhound is the fastest dog breed on Earth, reaching a maximum speed of 45 mph. While it is slower at the start, this dog maintains a speed of 35 mph for seven miles, covering that distance in 12 minutes.
Because the Cheetah cannot sustain its pace, the Greyhound’s endurance allows it to outrun the cat and win any long-distance race.
5. Petting the Dog Lowers Blood Pressure
A study from the University of Missouri reveals that petting the dog for 15 minutes lowers blood pressure by nearly 10%.
Spending this time together lowers the owner’s stress and calms the pet.
During this time, the brain releases Serotonin, Oxytocin, and Prolactin. These hormones improve mood and help you both relax at the same time.
6. Independent Decision-Making
Training a guide dog requires months of teaching them to put safety ahead of any command.
The dog learns to stay at the curb regardless of what the traffic signals show. If a car runs a red light, the guide dog refuses to budge to prevent an accident.
Ultimately, the dog’s judgment of the street matters more than a tug on the leash. A safe choice always overrides a direct order.
7. Incredible Swimmers
Certain breeds have the strength and (thick ) coat for cold water.
Newfoundlands work as rescuers because they are good swimmers and handle waves easily. These dogs jump in to reach a person and pull them back to the shore.
A famous Newfoundland named Whizz received the PDSA Order of Merit for his service. He worked with rescue teams for years, proving that these dogs can save lives in deep water.
Even with good swimmers, always watch your dog near the waves to keep them safe.
8. Dogs Are Just as Smart as Toddlers
Research shows that the dog has the mental ability of a two-year-old child.
Stanley Coren proves that dogs learn over 150 words and respond to specific hand signals. They count and use tricks to get food from people or others in the pack.
Training works because their brains process information much like a toddler’s.
9. Dogs See More Than Black and White
The long-standing myth that dogs see only in grayscale started with Will Judy.
“It’s likely that all the external world appears to them as varying highlights of black and gray,” Judy wrote in his 1937 manual, “Training the Dog.”
Modern research proves this is false. While human eyes recognize a full spectrum of colors, dogs see the world primarily in shades of blue and yellow.
They lack the receptors for red and green, making their vision similar to a person with red-green color blindness.
This vision helps dogs distinguish objects by color contrast, even if the range is limited. Understanding this helps you choose training tools or toys that “stand out” against the grass.
Instead of red, which appears brownish to dogs, blue or yellow objects are much easier for them to track.
10. Three Dogs Survived the Titanic
During the 1912 disaster, only three out of twelve confirmed dogs survived.
Margaret Hays saved her Pomeranian, Lady, by wrapping the dog in a blanket before boarding Lifeboat 7.
Two other small dogs, a Pekingese named Sun Yat-sen and another Pomeranian, also reached the lifeboats with their owners.
Being small, these dogs reached the lifeboats in their owners’ laps.
Larger dogs remained in the ship’s kennel and did not survive the sinking.
11. Tallest Dog in the World
A Great Dane named Zeus, from the US, holds the record for the tallest dog ever, measuring 1.118 meters on October 4, 2011.
He weighed 70.3 kg and ate 13.6 kg of food every two weeks. Standing on his hind legs, he reached a height of 2.23 meters.
Zeus died on September 3, 2014, at the age of five.
12. Why Are Dog Noses Wet?
Inside the dog’s nose, there are glands that make mucus. This keeps the nasal cavities moist.
A thin layer clings to the nostrils, helping the dog catch scents and keep their sense of smell sharp for tracking.
13. How Many Dogs Are in the World Today?
According to Dogster, the global population is estimated at around 900 million.
While millions live in homes, about 75% to 85% of all dogs are free-roaming, meaning they live outside or roam freely.
China has one of the largest pet populations, with the number of dogs sitting around 53 million.
In the United States, about 71 million households own at least one dog, making dogs the most popular companion in the country.
Conclusion
Dogs are more than just pets, they are partners that follow instincts we often don’t even notice.
From a greyhound’s speed to the way a canine tracks a scent, dogs show their strength and loyalty in everything they do.
These 13 facts show exactly why we choose to live our lives with them!
Which of these facts surprised you the most? Maybe you have a story about how your dogs outsmarted you or showed a skill I didn’t cover here.




I’ve had two Sarplaninac. One from a breeder upstate New York (zorin). And another one out of a pound if you can believe 6 months old.. female from pound Spade. The male pick of glitter. (Mergood)..Zori used to breed his bitches. They are the most unbelievable dogs that I’ve ever had and they live a very long time. And eat almost nothing. I seen male fight a bear. Walked away with no scars unbelievable why am I talking I don’t know just unbelievable love for the breed. If I didn’t live in Florida I would get more
Hello Gary,
We appreciate you sharing this valuable information with our site’s readers!
Greetings,
Alen Stefanovic