Pups in tow, Yellowstone-area wolves trek long distances to stay near prey
Peer-Reviewed Publication
Updates every hour. Last Updated: 16-Dec-2025 11:12 ET (16-Dec-2025 16:12 GMT/UTC)
In a new study, a UC Berkeley-led team of biologists observed gray wolves near Yellowstone National Park traveling 20 kilometers or more over rugged, mountainous terrain, with very young pups in tow. It is the first time gray wolves outside of the Arctic have been observed migrating, or shifting their territorial range, to be closer to prey during pup-rearing season.
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