1. There are more than 200 different dog breeds.
2. Dogs is the first animal domesticated by humans.
3. The dog has been living with human since 10,000 years ago
4. Long time ago, Shih Tzu breed was used by Chinese emperors and empresses to warm their feet during winter
5. Almost all breeds of dogs, have a pink tongue, except Chow Chow (born with pink tongues and turn into black when they are adult) and Sharpei, both have a black tongue.
6. There is a dog that did not bark, namely Basenji.
7. Dalmatian puppies are born pure white, black spots appear and evolve as they mature.
8. Dog breed extinction was usually caused by crossbreeding than disease.
9. The common difference between dog and wolf is their eye color.
10. All wolves have varying shades of yellow eyes. This is an eye color that is occasionally found in dogs, though most have brown or sometimes blue eyes.
11.Boo Boo, a long-haired female Chihuahua is the smallest dog with 4 inches tall and weighs in at a mere 2 pounds.
12. Giant George, a 43-inch-tall Great Dane holds two world records: tallest living dog and tallest dog ever
13. Ancient Chinese royal family love Pekingese dogs , they carry the dog with a tucked in royal robes.
14. Greyhound has a remarkable run speed, up to 45 miles/hour (or about 72 km/h ) in a short time .
15. Dog has a habit of wrapping his tail to cover his nose to keep his nose keep warm during cold weather.
16. Laika was the first dog astronaut. This female dog was sent into space in an artificial earth satellite in 1957 by the Russian government.
17. Puppies have 28 teeth and normal adult dogs have 42.
18. There were two dogs survived in sinking Titanic tragedy, a Pekingese owned by Henry Sleeper Harper and a Pomeranian owned by Miss Margaret Hays.
19. There are two mammals that have a prostate gland, man and dog.
20. Dog’s nose is wet because it secrete a mucous that helps them absorb scent. They then lick their noses to sample the scent through their mouth.
21. The oldest dog ever lived 29 years old.
22. Dogs have three eyelids to keep the eye moist and protected.
23. Dogs sweat through the pads of their feet.
24. Dogs’ sense of smell is 10,000 times stronger than humans’
25. Labrador Retriever is the most popular dog by registered ownership.
26. Dogs are not color blind, they can see colors, but not that bright.
27. Dogs are able to know the location of a sound source in 6/100 seconds using their ears like a radar.
28. Dogs have a awesome sense of smell. Dog can distinguish the smell of any materials, such as meat, potatoes, etc.
29. Newfoundlands dog breed has webbed feet to help them swim.
30. Puggy, a male Pekingese holds the world record for current longest dog tongue with a tongue that measures 4.5 inches long