The howling is sporadic and sorrowful, a lone wolf pulling back his head and pouring his grief into the sky. Thor, a 15-year-old gray wolf, lost his mate two days before, and he is keenly feeling her ...

Why do wolves howl at night, and what makes it quite an eerie sound? originally appeared on Quora: the place to gain and share knowledge, empowering people to learn from others and better understand ...