North American river otters in Yellowstone National Park, Wyoming
© mlharing/istock/Getty Images
North American river otters in Yellowstone National Park, Wyoming
North American river otters can run on land at speeds up to 24 kilometres per hour, and have been documented sliding across snow and ice when a quick escape is necessary. But they’re incredibly well-suited to swimming, even when the winter brings the deep freeze to Yellowstone National Park. Their thick pelt and long, tapered body help them glide through the water, propelled by their short legs and webbed feet. They’ll even swim below the surface of a frozen lake or river, staying submerged for nearly eight minutes before they have to find a hole in the ice and refill their lungs.
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