15 Interesting Facts About Dogs.

1. Three dogs (from First Class cabins!) survived the sinking of the Titanic two Pomeranians and one Pekingese.

2. It’s rumored that, at the end of the Beatles song, “A Day in the Life,” Paul McCartney recorded an ultrasonic whistle, audible only to dogs, just for his Shetland Sheepdog.

3. Dogs have about 1,700 taste buds. Humans have approximately 9,000 and cats have around 473.

4. It’s a myth that dogs only see in black and white. In fact, it’s believed that dogs see primarily in blue, greenish-yellow, yellow and various shades of gray.

5. While the Chow Chow dogs are well known for their distinctive blue-black tongues, they’re actually born with pink tongues. They turn blue-black at 8-10 weeks of age.

6. Former US President Teddy Roosevelt had a Pit Bull named Pete.

7. If a dog isn't spayed or neutered, a female dog, her mate and their offspring can produce 67,000 dogs n 6 years.

8. The term "dog days" has nothing to do with dogs. It dates back to Roman times, when it was believed that Sirius, the Dog Star, added its heat to that of the sun from July 3 to August 11, creating exceptionally high temperatures. 

9. The Basenji is the only barkless dog in the world.

10. The reason dogs curl up is because of an age-old instinct to keep themselves warm and to protect vital organs while they sleep.

11. When dogs poop, they prefer to do it in alignment with the Earth's magnetic field.

12. If a guy has a dog with him, he's three times more likely to get a girl's phone number.

13. The Norwegian Lundehund is the only dog that has six toes on each foot.

14. A dog named Duke is the mayor of Cormorant, Minnesota. 

15. In a study done by scholars at the University of California, it was found that dogs can get jealous if they see their humans displaying affection toward something or someone else.