2. Dogs can perform many tasks to assist humans. They can guard, hunt, do farm work, and aid people with disabilities. They can help the blind. They can also be trained to compete in breed shows which display their amazing agility. There are obedience contests, sled pulling, and racing that are meant for dogs.
3. The domestication of dogs, which naturally live in the wild, happened around 15,000 years ago.
4. Dogs have the same digestive systems as wolves and foxes - their counterparts in the wild. Thus, you are making it hard for them to digest pellet-based, plant-based, and processed dog foods. Dogs are meant to subsist on raw meat and bones.
5. Domestic dogs may eat plant-based foods, but it is not necessarily good for them. Foods that are plant-based will tax their pancreas and shorten their life spans.
6. Dogs have a spectacular sense of smell. They can differentiate odors in concentrations of around 100 million times lower than what humans can!
7. The hearing of dogs is also much more superior to that of humans. They can hear sounds at four times the distance!
8. According to the number of registered ownership, the most popular dog breed in the world is the Labrador. They are usually used as guide dogs and as police dogs. Labradors are extremely intelligent, obedient, gentle, and tireless.
9. Dogs live up to ten to fourteen years. They live longer if they are fed with unprocessed and uncooked meat and bones.
10. Dog breeders call young dogs less than one year of age as "puppies," a group of dog offspring as "litter," male dogs as "dogs," and female dogs as "bitches."
11. Dogs tend to pant a lot because they don't have any sweat glands on their body. Their sweat glands are only at their paws!
12. Dogs have a total of three eyelids. The third lid is called a nictitating membrane or haw; it keeps their eyes protected and fully lubricated.
Pet Article courtesy of http://pet-articles.blogspot.com.