10 incredible scientific discoveries about dogs

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10 Incredible Scientific Discoveries About Dogs


Dogs are perhaps best known for being loving and loyal, but they also have a bevy of lesser-known (and quite fascinating) traits.

Here are 10 incredible scientific discoveries about them:

Number 10: They have 3 eyelids. Like people, dogs have top and bottom ones that move up and down. They also have one that originates in the corner of the eye and moves side to side. Its purpose is for clearing mucus and debris.

Number 9: Dogs really do love their humans. There's scientific proof of it. MRI scans revealed that when presented with the scents of various people and canines, the reward centers of the dogs' brains were most responsive to the aromas of their human companions.

Number 8: They're just as smart as toddlers. Specially designed IQ tests show that dogs' capabilities are on par with the typical 2-year-old. That means they're capable of learning over 150 words and gestures.

Number 7: Dog paws often smell like snack foods. There's some debate as to whether the particular scent is popcorn or corn chips, but either way the cause of it has been linked to a bacteria dogs pick up while walking about.

Number 6: Canines possess the super power of night vision. It's not cat-level, but it is superior to the darkness navigating abilities of humans. Dogs' pupils are larger and their central retinas have more cells dedicated to light sensitivity than to color detection. That gives them an upper hand when it comes to making out objects in dim light.

Number 5:Every nose is unique. The Canadian Kennel Club has been using nose prints as a means of individual identification since the 1930s, and many organizations have followed suit.

Number 4: They most likely dream. Proof isn't at the 100 percent mark, but there is an abundance of support backing the claim. Much of it is based in brain attributes and behaviors that dogs and humans share. Among them are structure and the occurrence of electrical impulses during the deep sleep stage.

Number 3:Fur isn't just about warmth. In the summer it acts as insulation, keeping heat from reaching the body. Fur also protects the skin from the sun's damaging rays.

Number 2: They really do listen when you talk. Even better, they've been shown to understand a lot of what's being said. Though they're not able to decipher the words, dogs can interpret certain sounds and the message's overall emotional tone.

Number 1: Dogs aren't nearly as sweaty as humans. That's largely because rather than having sweat glands all over the bodies, as people do, dogs only have them in their paws. To cool off, they rely mostly on panting.

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10 incredible scientific discoveries about dogs


Are you a dog lover? See sweet photos of puppies in the slideshow below:
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10 incredible scientific discoveries about dogs

Golden Retriever puppies 

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Puppies on Park Bench

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Seven week old Siberian Husky puppy sleeping.

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Close up of a cute golden retriever puppy

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Wheaten Terrier Puppies Playing 

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I wanna play ... this 8-week-young Beagle puppy said with a waggy tail.

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Four puppies in a row

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A happy and energetic Pembroke Welsh Corgi puppy runs on vibrant green grass.

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English Bulldog puppy 

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Boxer dog balancing treat on its nose.

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Two dogs (Siberian Husky and Pomeranian) cuddling.

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Howling Eurasier puppy

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The image is of a Boston Terrier puppy and a toddler boy approximately 2-5 years of age with blonde hair. The puppy and the boy are staring at each other. 

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Cute Puggle Looking at Camera.

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Spaniel puppies in a basket.

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Beagle puppy lying in a tiny suitcase

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Beagle with ears spread wide 

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Dalmatian puppy standing in a field 

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Cute dachshund puppy 

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American Staffordshire puppy

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Cavalier King Charles Spaniel puppy naps on her blanket.

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White Chihuahua puppy wearing heart shaped sunglasses.

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Chocolate Lab puppy looking out of a basket.

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Puppy taking a break (it is tough to be such a young model!)

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Red puppy with wrinkles, blue eyes, Shar Pei & pit bull type

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Sleeping Chihuahua puppy

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Basset Hound puppy with visor

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Mongrel Dog With a Toy Bone 

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Tiny boston terrier puppy chewing on toys

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A Beagle puppy of 12 weeks running on yellow sand with only 2 feet on the ground

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puppy, red and white, pitbull, amstaff, american staffordshire terrier, cute, inquisitive, poker face

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Boxer puppy with doghouse

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Basset Hound puppy

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Yorkshire Terrier puppy sits by owners feet, on green lawn.

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

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German shepherd puppy running through field

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American Staffordshire terrier puppy yawns sitting on wooden boards

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Golden Retreiver puppy girl running in the front yard through the spring green grass on location for adventure playtime and imagination with sunlight and green trees in the background

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Close-up Of Puppy

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A serious black puppy (Pit Bull mix) stares intently at the camera while light from the sun shines behind him.

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Cute puppy with a green bandage

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Ten week old female Golden retriever puppy lying on grass.

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Black and white pit bull puppy.

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Puggle puppy looking at the camera with adorable eyes.

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Shih Tzu puppy running on the sand.

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Akita sleeping on the floor

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French bulldog puppy sleeping with teddy bear

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Spoiled Yorkiepoo Puppy Sitting in Bed of Toys

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Howling eurasier puppy

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Italia, Piedmont, Tortona, Portrait of puppy looking at camera

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Lazy Dog

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