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A gray wolf runs after being released on public lands by the Colorado Parks and Wildlife Commission on December 19, 2023. (Jerry Neal / CPW)
Press Release October 22, 2025

Legal Organizations: Colorado on Solid Footing to Release Wolves from Canada

10(j) rule identified one possible source of wolves, not a mandated population

Remote camera image of a wolf pups taken during the summer of 2025. (Courtesy of Colorado Parks and Wildlife)
Article October 2, 2025

Birth of New Pups Illustrates the Success of Colorado Wolf Reintroduction

The births underscore the importance of reintroduction efforts and strong protections for endangered species.

Clockwise, from top-left: (Jerry Neal / CPW), (SimonSkafar / GettyImages), (Courtney Couch / NOAA), (Zach Stern / CC BY-NC-ND 2.0), (K. King / USFWS), (Zara / 500px), (Lisa Hupp / U.S. Fish and Wildlife Service), (New Zealand Department of Conservation), (jacobeukman / Getty Images), (Troy Harrison / Getty Images)
feature November 3, 2025

Biodiversity Program Report

Earthjustice fights to protect imperiled species and the habitats that support their lives — and ours. Here are highlights of our work to defend our natural world over the past year, and a glimpse at what’s next.

Press Release March 25, 2025

Endangered Species Coalition Responds to Republican-led Congressional Attacks on Endangered Species Act and Gray Wolves

Groups express wide opposition to proposed legislation

Press Release: Victory February 10, 2022

Gray Wolves Regain Federal Endangered Species Act Protections

Court decision will prevent hunting, poisoning, and trapping in 44 states

The Gallatin Range in Southwest Montana. (Jared Lloyd / Getty Images)
feature September 23, 2025

The Intermountain West: Regional Spotlight

Our teams in Bozeman, Montana, and Denver, Colorado, have spent decades fighting to defend the web of life, to protect people’s health, and to advance a just transition to clean energy. We’re pleased to share highlights of our progress, and a glimpse at what’s next.

Biologists fit a female gray wolf with a radio tracking collar.
 (Brendan Oates / U.S. Fish & Wildlife Service)
Update January 14, 2021

We’re Challenging the Trump Administration’s Decision to Strip Federal Protection From Wolves Across the Country

Six environmental groups have filed a lawsuit against the Trump administration’s rule that removed Endangered Species Act protections for gray wolves across most of the lower-48 states.

Article: Victory November 9, 2021

How a Win for Montana’s Lynx and Grizzlies Also Protects Wolves

We’re also pursuing multiple other cases to protect this keystone species across the contiguous United States.

A young gray wolf.
Press Release June 9, 2021

Forest Service Protections Sought for Wolves in Idaho, Montana Wilderness Areas

New policies could eradicate gray wolf populations in Northern Rockies states

Article May 25, 2021

Biden Says ‘I’m in!’ for Protecting Wolves

He’s looking for guidance on how to do it. We have some ideas

Gray wolf
 (Holly Kuchera / Shutterstock)
Update March 10, 2021

200-Wolf Slaughter Shows Why Wolves Need Protection

The slaughter in Wisconsin is an awful example of why wolves need the protection of the Endangered Species Act, our nation’s strongest conservation law.

Two wolves in the winter forest.
(Kjekol / Getty Images)
Press Release August 28, 2025

Anti-Wolf Ballot Measure Drive Fails to Gather Enough Signatures in Colorado

Ballot measure deadline passes ensuring reintroduction can continue

Once found nationwide, gray wolves were hunted, trapped, and poisoned for decades; by 1967 there were fewer than 1,000 wolves in one small part of the Midwest.
(Paul Carpenter / Getty Images)
Press Release October 29, 2020

Trump Administration Strips Protections from Gray Wolves

New rule removes the gray wolf from the Endangered Species Act, halting wolf recovery

feature September 14, 2012

A Friend of Wolves for Decades

Earthjustice has worked for more than two decades to protect wolves and return balance to the Northern Rockies ecosystem.

Press Release February 7, 2022

Earthjustice Calls for Emergency Relisting of Northern Rockies Gray Wolves

Response follows Secretary Haaland op-ed in USA Today

Press Release July 15, 2019

1.8 Million Americans Speak Out Against Stripping Federal Protections from Wolves

Federal proposal would halt wolf recovery, allow more wolf killing

Update October 1, 2021

A Plan to Kill 300 Wolves in Wisconsin Has Sparked Outrage Among Tribal Nations

Earthjustice has spent decades fighting for wolf recovery and will continue that fight with our tribal partners in this case.

A remote camera snapped this photo of a wolf pup in California's Lassen National Forest in 2017. Recently a state judge upheld protections for California's growing wolf population.
(U.S. Forest Service via AP)
Article February 13, 2019

Court Ruling Aids Wolves’ Return to California

A judge’s decision to uphold California’s protections for wolves is a step in the right direction, but one lone wolf’s epic journey across state lines shows that federal protections are necessary to ensure the species’ continued survival.