I have a dog that i love so much.  But it takes a lot of comittement.
Yes, they are alot of work and commitment.  They were the first species to ever be domesticated.
yes nobody seems to know how long dogs have been with human, at least thousand of years.  Do you have a dog?
Yes, they say that all dogs originated from wolfs but it is hard to picture my little Mia(chihuahua) coming from the wolf.  LOL