Scientists debunk decades-long study claiming wolves' reintroduction triggered a dramatic transformation in Yellowstone.

Colorado Parks and Wildlife’s latest watershed map — which shows the collared wolves’ activity between April 22 and May 27 — ...

Previous research on the effect of wolves on the food web has been criticized, raising questions about the predator’s role in the Yellowstone ecosystem.

After they were captured in Canada, the wolves released in Yellowstone National Park initially stayed in acclimation pens, like this wolf pictured in the Crystal Creek pen on Jan. 26, 1996. (Photo ...

On Dec. 11, 2025, Colorado Parks and Wildlife officials captured and returned a wolf into Grand County, Colorado, that had ...

Since January, five of the 15 gray wolves brought to Colorado from British Columbia have died. As Colorado Parks and Wildlife renews discussions with the Canadian province to obtain more wolves, it ...

In the 18 months since Colorado Parks and Wildlife began the voter-mandated reintroduction of gray wolves, seven of the 25 wolves it has relocated from Oregon and British Columbia have died. Four of ...

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk... What is the legacy of Yellowstone wolves 30 years after ...

DENVER — Colorado Parks and Wildlife spent more than $3 million on the state's wolf reintroduction program in one year — more than three times as much as what voters were told it would cost during the ...

On a day the U.S. House of Representatives narrowly passed a bill to delist gray wolves, U.S. Interior Secretary Doug Burgum ...

The Pet and Livestock Protection Act, introduced by Rep. Lauren Boebert, passed on Dec. 18th in the House of Representatives ...

Since January, five of the 15 gray wolves brought to Colorado from British Columbia have died. As Colorado Parks and Wildlife renews discussions with the Canadian province to obtain more wolves, it ...