Growlithe is a friendly and loyal Pokémon that will fearlessly defend its Trainer and territory from harm, even against larger, stronger enemies. In particular, it has been known to fight with Rockruff over territory. It will fiercely bark at, bite, and chase away any perceived threat. Otherwise, this obedient Pokémon will wait motionlessly until given an order. It has a long history with people, as its bones have been found in Stone Age ruins. In the wild, Growlithe can be commonly found in grassy plains.