A dog is a domesticated animal. Based on recent studies on dogs, it has been said that there are 329 varied species of dogs. Dogs have a very powerful sense of smell and it has been found that it is at least 4 times more powerful than humans.
Labrador Retrievers, golden Retriever, beagle,and Cocker spaniel are some of the friendliest dog breeds in the world. Norwegian Lundehund is the rarest dog breed in the world. According to Guinness World Records, a Portuguese dog named Bobi was crowned the world’s oldest dog ever at 30 years and 266 days old.