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We all know that a dog is man's best friend. We take care of them, and they love, delight and protect us. While your dog knows everything about you, you definitely don't know much about him. Have you ever wondered if dogs dream? Why do some people have webbed feet? Here are 15 fun facts about our shaggy friends that will surely surprise you.
1. Just like us, dogs dream.
Dogs, like humans, have two phases of sleep, REM sleep and non-REM sleep. During slow sleep, dogs breathe deeply and evenly, during fast sleep they growl, move their paws, whine and dream.
2. Dogs can literally smell some human diseases.
In 2009, a study was conducted in which dogs tried to detect cancer by sniffing the breath of patients. Dogs recognized about 90% of patients.
3. Here it is what a dog's eyesight is compared to ours
It was once thought that dogs could only see everything in black and white. But recent research has shown that humans have three sets of color receptors, while dogs only have two. This hinders their ability to distinguish certain colors.
4. Dogs can see in the dark much better than humans.
The fact is that in the retina of the dog's eye there are more rods - light-sensitive cells responsible for vision at dusk.
5. Labrador is the most popular dog breed
According to the American Kennel Club, the Labrador has been the most popular dog breed in the US for 26 consecutive years. German Shepherds and Golden Retrievers came in second and third.
6. A dog's nose print is as unique as a human fingerprint.
It is believed that no two dogs have the same nose print. The Canadian Kennel Club has been accepting prints as proof of identity since 1938.
7. Dogs love to ride in stinky clothes because they think the smell is divine.
Dogs have many more olfactory receptors than we do. But they perceive smells differently, and this explains why your dog likes to ride in a smelly place.
8. Dogs curl up in their sleep because of their self-preservation instinct.
The dog usually sleeps curled up to protect its internal organs from predators. Another such position suggests that she does not want to be disturbed, does not want to play.
9. The Saluki is the oldest dog breed that has been with humans since 329 BC.
Some historians claim that in Egypt, the Saluki was considered a separate breed of dog as early as 329 BC.
10 Some Dogs Have Webbed Feet
This feature is in breeds that have hunted waterfowl since ancient times.
11. Dogs can gauge emotions by listening to your voice.
A group of scientists, based on the results of experiments, concluded that dogs can not only recognize emotions in a person’s face and voice, but are able to distinguish when facial expression and emotional coloring of a person’s speech do not match.
12. The ancient Chinese hid the Pekingese in the sleeves of their clothes in order to use them in case of danger.
If someone attacked the owner of the Pekingese, a tiny dog with a ringing bark jumped out of the sleeves and mercilessly attacked the enemy.
13. Dogs have no remorse.
Sad eyes, raised eyebrows, averted gaze are not signs of shame. Over thousands of years of living with a man, the dog has adapted to his behavior and has learned to look guilty.
14. If you are over 30 years old, then there is not a single dog left on Earth that lived at the time of your birth.
The oldest dog died at the age of 29, so it's easy to calculate that every living dog today was born after 1987. If you were born before 1987, you have outlived a whole generation of dogs.
15. There is a dog heaven on earth
In Costa Rica, there is a real dog paradise - this is a shelter in which hundreds of dogs run freely throughout its territory. Here you can feel safe: all dogs are fed and examined by veterinarians. People come to the shelter from afar to look after a pet or just play with its friendly inhabitants.