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In this undated photo provided by Grand Teton National Park a grizzly bear known as No. 399 walks along side a cub. (C. Adams/Grand Teton National Park via AP)

In this undated photo provided by Grand Teton National Park a grizzly bear known as No. 399 walks along side a cub. (C. Adams/Grand Teton National Park via AP)

FILE - Grizzly bear 399 and her four cubs feed on a deer carcass on Nov. 17, 2020, in southern Jackson Hole. (Ryan Dorgan/Jackson Hole News & Guide via AP, File)

FILE - Grizzly bear 399 and her four cubs feed on a deer carcass on Nov. 17, 2020, in southern Jackson Hole. (Ryan Dorgan/Jackson Hole News & Guide via AP, File)

In this undated photo provided by Grand Teton National Park a grizzly bear known as No. 399 stands along side a cub. (C. Adams/Grand Teton National Park via AP)

In this undated photo provided by Grand Teton National Park a grizzly bear known as No. 399 stands along side a cub. (C. Adams/Grand Teton National Park via AP)

In this undated photo provided by Grand Teton National Park a grizzly bear known as No. 399 walks along side a cub. (C. Adams/Grand Teton National Park via AP)

In this undated photo provided by Grand Teton National Park a grizzly bear known as No. 399 walks along side a cub. (C. Adams/Grand Teton National Park via AP)

FILE - Grizzly bear No. 399 and her four cubs cross a road as Cindy Campbell stops traffic in Jackson Hole, Wyo., on Nov. 17, 2020. (Ryan Dorgan/Jackson Hole News & Guide via AP, File)

FILE - Grizzly bear No. 399 and her four cubs cross a road as Cindy Campbell stops traffic in Jackson Hole, Wyo., on Nov. 17, 2020. (Ryan Dorgan/Jackson Hole News & Guide via AP, File)