The most famous wolf in Yellowstone National Park, collar number 907F, has died. Known as the “Queen of the Wolves” for her prolific lineage, 907F produced 10 litters of pups in 11 years — one of just six recorded wolves to reach that age since the animals were reintroduced to Yellowstone in 1995.

The matriarch of the Junction Butte pack birthed a total of 10 litters, the most recent of which were born in May 2024. Although the total number of surviving offspring are unknown, she is considered the most reproductively successful wolf in Yellowstone’s history.

Record-breaking Wolf 907F, the alpha of the Junction Butte pack, died after a confrontation with a rival pack at Yellowstone River on Christmas Day.

One of Yellowstone National Park’s oldest gray wolves, a one-eyed matriarch dubbed 907F, has died after sustaining wounds in a fight with a rival pack. Affectionately named “queen of the wolves”, 907F lived to the grand age of 11 – exceptionally long for a wild canid – and birthed an astonishing 10 litters in her time.