Correct, however dogs are amazing at adapting super fast to all kinds of new situations, environments, weather, etc. For example, their natural instincts of alertness and protection comes out automatically at night fall, that is something I observed with my girl how she moves and behaves different at night. I think the "right" dogs will learn very fast the new dangers that are surrounding them if dropped in a hostile location, and will act accordingly. Many of them will not make it, but if half the pack does and has a chance to reproduce, the next generation will do better. After all, dogs are smart and great survivors.