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Grizzly expert Casey Anderson is keeping an eye on a mom and her two 4-month-old cubs. They’ve emerged from hibernation and are facing the outside world for the first time as a new family. But Spring can be a time when these young bears are at their most vulnerable.
Check out the animals of Yellowstone as the families brave a brutal winter, face a torrent of water during the wet spring, and transition during the soaring temperatures of summer.
