FarmVille introduced a new dog -- the Heeler puppy for 65 Farm Cash. Once this dog grows up, it will be able to help harvest cows, which makes sense because Heelers are also known in real life as an Australian Cattle Dog. The heeler comes in gray, black and brown and comes with two weeks' worth of kibble. Also, since this is a cash dog, you don't have to worry about it running away if you don't feed it every day.
The Heeler is the fifth dog breed introduced into the game, alongside the Border Collie, Sheep Dog, Terrier and the Golden Retriever. Each dog has their own special skill which can be accessed after feeding them dog biscuits for a certain number of days in a row. Terriers can harvest rabbits, Sheepdogs can harvest sheep and now the Heeler can collect milk from your cattle. Now that's what we call man's best friend.