Correct me if I'm wrong but Dogs are the best thing to ever happen in this world. 
Absolutely without a doubt! I love dogs. They are a member of the genus "canis" (canines), which forms part of the wolf like canines and they're the most widely abundant terrestrial carnivore!
I wonder how long they have been man's best friend?
That's a very good question, the dog was the first species to be domesticated and they have been selectively bred over a millenia for various behaviours, sensory capbilities and physical attributes. Truly a mans best friend! 
Wow, How interesting. I have one a Pitbull and when i'm looking to adopt another soon.
I would love to adopt a dog soon but not sure which to get, i like pugs but they have poor health so maybe not. They are actually referred to as mans best friend because of the influence they have had on human society
I found my eating out the dumpster and loved her from day one. My plan for my next down is to adopt who ever had been at the shelter the longest.'
was the first species to be domesticated and has been selectively bred over millennia for various behaviors, sensory capabilities, and physical attributes.
Their long association with humans has led dogs to be uniquely attuned to human behavior and they are able to thrive on a starch-rich diet that would be inadequate for other canid species. Dogs vary widely in shape, size and colors. They perform many roles for humans, such as hunting, herding, pulling loads, protection, assisting police and military, companionship and, more recently
Dog
The domestic dog ("Canis lupus familiaris" when considered a subspecies of the wolf or "Canis familiaris" when considered a distinct species) is a member of the genus "Canis" (canines), which forms part of the wolf-like canids, and is the most widely abundant terrestrial carnivore. The dog and the extant gray wolf are sister taxa as modern wolves are not closely related to the wolves that were first domesticated, which implies that the direct ancestor of the dog is extinct. The dog