Subscribe | UPI Odd Newsletter Subscribe July 2 (UPI) -- A YouTuber taking a swim with two canines captured the moment the smaller of the two dogs jumped onto the larger one's back while it was swimming. A video posted to YouTube by Cat Hursh shows a large black dog named Riley being coaxed into the pool to pursue a floating toy. Advertisement Riley slowly and methodically climbs into the water and swims only a few feet before a Yorkie named Sadie takes a flying leap from the edge of the water. Sadie flies directly to Riley, landing on the larger dog's back and holding on as she swims. Read More Canine wanders on stage during orchestra performance in Turkey Toddler climbs on basset hound to get snacks from fridge Kentucky town's dog mayor wins rave approvals