Staff at Yellowstone National Park reported the first grizzly bear tracks of 2025 on March 9, marking the arrival of spring. The unmistakable tracks signal the end of hibernation, a phenomenon also observed in nearby parks. Jackson Hole EcoTour Adventures shared a video of a female black bear with cubs emerging from her den. Grizzly and black bears typically exit their dens in mid-March, following their winter hibernation. Park officials remind visitors to be cautious as bears return to the outdoors.
Grizzly bear tracks are unmistakable: huge prints in the snow, larger than a human hand, with long front claws, signaling spring in Yellowstone.
Both grizzly and black bears in the Northern Rockies and the Sierra Nevada usually begin emerging from their dens in mid-March, indicating the end of winter.
Bears hibernate as a way of coping with a lack of food during winter months, with hibernation lengths varying greatly depending on location.
Emily Davis, a spokesperson for Grand Teton National Park, said, 'This is about the time of year we start seeing them' through mid-March.
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