A flare up of a disease that’s especially lethal to wolf pups took a toll on Wyoming and Yellowstone National Park wolf numbers in 2025, reducing biologists’ counts to a level last seen when wolves ...
Learn more about the canine distemper outbreak that could have reduced Yellowstone wolf pup populations to a historic low.
Few animals symbolize wild interconnectedness quite like wolves, whose return helped reveal just how tightly ecosystems are ...
Despite distemper-driven decline, most remaining canines now have strong antibodies and resistance — and state biologists are ...
A flare up of a disease that’s especially lethal to wolf pups took a toll on Wyoming and Yellowstone National Park wolf numbers in 2025, reducing biologists’ counts to a level last seen when wolves ...
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