Dogs are domesticated animals which are rumored to exist in physical form in and Grand Theft Auto IV.
Dogs are reported to be roaming the streets of Liberty City. In an article on the Liberty City Tree website, it is rumored, along with the Middle Park Whale and other myths, that dogs can be found. Barking noises can be heard at night in alleyways supporting its existence, but the barking may just be part of the background ambiance noise of the city. There has yet to be any images that prove dogs exist in GTA IV. Pets, the common domesticated animals are referenced to an extent. The only animals seen in GTA IV are Pigeons (flying rats) and Seagulls. Various signs and posters are found in Liberty City. One sign says "Missing Cat: 500$ Reward" and another says something along the lines of "Pick up dog droppings: 500$ Fine."