AdvertisementIt's A Bird! It's A Plane! It's ... A Dog Dangling From A Helicopter?!Play05:02Download AudioMarch 27, 2019Ailsa ChangfacebookEmailHenry, a border collie with the Canadian Avalanche Rescue Dog Association, flies with his handler over ski slopes in the Canadian Rockies. He is one of six dogs profiled in the IMAX film Superpower Dogs. (Cosmic Picture Limited)
