SAMPSON, a one-year-old yellow Labrador came to the rescue of his owner’s sister, Carol Robinson, after she was pulled under the icy cold water of a glacier-fed river in the Yukon Valley. Carol was crossing the river when she accidentally stepped into a hole in the river bed. Water poured into her chest waders and dragged her under. Sampson swam to her aid, diving beneath the surface of the water to grab her sleeve. Gripping her arm with his teeth, he towed her out of the strong current to the safety of the river bank.