A New Wildfire Watchdog

Why is the dog barking, you wonder, as you wake up? You notice the smell of smoke, and when you try to turn on your bedside light you discover that the power is out. Then you see it out your window: a wall of orange flame, crawling up a nearby hillside. You roust your family and run to the car. Your lives have just been saved by a Stone Age warning system: your dog.