Who invented dogs?

Answer 1

I'm not sure which dog you're referring to here, but

http://en.wikipedia.org/wiki/Dog_(disambiguation)

should help.

If you're talking about the animal, then no person 'invented' the dog. It either evolved from earlier lifeforms, was created by some sort of higher being, or came about in some other way nobody has theorized yet.

Answer 2

Nobody invented dogs, just as nobody invented any of the animals or plants on this planet. Animals evolved into the animal we call "dogs" over a long period of time, just as we evolved into humans.

Answer 3

Dog biscuits were invented in London by a butcher shop owner. He was trying to come up with a biscuit recipe and decided they tasted bad, so gave them to his dog. The dog loved it and he w=began to sell them especially for dogs.