8 Amazing Fun Facts About Dogs

8 Amazing Fun Facts About Dogs
  1. Dogs have a sense of smell that is more than about a million times stronger than that of a human being. Their brains are specialized for identifying and recognizing scents. In fact, the percentage of their brain devoted to smells is 40 times more than that of a human being. Because of this amazingly great sense of smell, dogs rely on their sense of smell to interpret the world, much like how most humans greatly rely on their sense of sight.
  2. The sense of hearing of dogs is about 10 times more accurate than that of a human being. By the time their sense of hearing is fully developed, dogs can hear 4 times the distance of a human with normal hearing. They can also detect a wider frequency range compared that of humans. They can detect sounds in the frequency of approximately 40 to 60,000 hertz, depending on age and breed. Dogs also have more muscles, about 18 or more, in their ears, which makes them hear sounds better.
  3. Dogs are not colorblind, such that they only see black, white, and gray. It is a myth that dogs are colorblind, because they see color, just not as vividly as human beings do. The color range dogs perceive is limited compared to the wider spectrum that human beings see. Their color fields mainly consists mostly of blues, yellows, and violets. This is because dogs have less types of cones, have more rods, and no fovea, the part for sharp visual details in human beings.
  4. The fastest dog breeds can run up to about 40 miles per hour at full speed. Breeds that run fast include Greyhound (43mph), Vizsla (40mph), Jack Russell Terrier (38mph), Borzoi (36mph), and Weimaraner (35mph). Shoulder blades of dogs are unattached to the rest of the skeleton of their body, and this allows them to be more flexible for running fast.
  5. The only sweat glands dogs have are around its foot pads. Unlike human beings who have a lot of sweat glands to aid with cooling, dogs only have very few sweat glands. Because of this, they have a different means of cooling themselves. The principal mechanism used by dogs to regulate their body temperature is panting with their mouth open and breathing heavily, which allows the moisture on their tongue, nasal passages, and lungs to evaporate.
  6. Female dogs have a pregnancy duration of about 63 days. They carry their puppies for about 2 months before they are born. This is measured from the ovulation (release of eggs) day to the day the puppies are born. Like human beings, dogs also have three trimesters, each at approximately 21 days long.
  7. Chow Chow and the Chinese Shar-Pei have black tongues! Unlike almost all dogs that have pink tongues, Chow and Shar-Pei have black ones. Nearly all but two breeds of dogs have pink tongues: the Chow Chow and the Shar-pei both have black tongues. The origin of this black tongue is still a mystery – there is still no verified explanation as to how or why they came to have it. A few other animals, such as giraffes and polar bears, also share this trait.
  8. Dogs also dream! Dogs have the same type of slow wave sleep (SWS) and rapid eye movement (REM) as human beings. Many scientists believe that dogs also dream during their REM sleep. Harvard psychologist Dr. Barrett even said that dogs often dream about their owners, because like people dogs also “dream about the same things they are interested in by day.”

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