A wolf howl is the ultimate sign of respect (if you're a wolf)

Wolf howls are among the most recognizable—and, depending on one's situation, most fearsome—sounds in the wild, with their low pitch and long duration making them the perfect form of natural long-distance communication. But just why do wolves want to reach out to one another over the vast expanses of forest and tundra? » 8/25/13 5:00pm 8/25/13 5:00pm