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Interesting Facts About the Domestic Dog

Overview

We all know that dogs can hear better than humans but did you know that they have nearly 20 muscles in their ears versus fewer than 2 (usually non-functional) in humans? Learn more about the biology, skills and talents found in Man's Best Friend.

Sight

Contrary to popular belief, dogs do see color but not the full spectrum most humans can see. Dogs are red-green color blind so to them, red and green look like beige. While their ability to see details is 6 times weaker than humans, their night vision, peripheral and depth vision and ability to detect movement are all far superior to humans.

Sounds

Dogs' super-sensitive ears respond both to lower volumes and higher pitched sounds. Their ears can adjust to maximize reception. Eighteen or more muscles tilt, raise and rotate a dog's ears for the best possible sound reception. The shape of a dog's ears helps with hearing too. Just as we cup our hands around our ears so we can hear better, a dog's upright, curved ears help direct and amplify sound.

Smell

Dogs have nearly 220 million smell-sensitive cells over an area about the size of a pocket handkerchief (compared to 5 million over an area the size of a postage stamp for humans). Therefore, their sense of smell is generally 10,000 to 100,000 times superior to that of humans.

Strength

When properly trained and conditioned, a dog can pull up to 23 times their body weight! Some dogs have a bite force of over 300 pounds per square inch. These two statistics demonstrate the need for proper training and understanding of canine language, especially in the more powerful breeds.

 
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