In deep winter, the water territory of river otters is reduced to a few isolated spots. As a result, otters must travel over land to the next fishing location - a perilous journey.
Winter in Yellowstone. Driving snow and temperatures 50 degrees below zero collide with spewing heat from subterranean forces, creating dramatic, otherworldly displays. Host Bill Pullman embarks on a journey over vast blankets of snow, through sparkling prisms of "diamond dust," and across rivers warmed by geothermal springs. Marvel at the park's wildlife and see how the area's extreme conditions pose challenges even for animals that have evolved to survive its winters.
Watch this episode online now.
Stream hundreds of shows by starting your free trial to Smithsonian Channel Plus. Check the availability of this title and explore our vast library of original documentaries and series.
Access even more free Smithsonian Channel full episodes and documentaries online through participating TV providers.
Find out if your television provider carries Smithsonian Channel.
Don't panic! It's simple to upgrade to the latest version of one of these browsers:
Don't panic! To get the best possible experience on smithsonianchannel.com we recommend you upgrade your operating system.
For the best possible site experience, please use Chrome for Android.
Add username "SmithsonianChan" on Snapchat for fun and fascinating facts. We'll be sharing spontaneous photos and videos as inspiration strikes.