Center for Biological Diversity

Famed O.C. cougar fatally struck in Santa Ana Mountains

Mountain lion "uno"

Top Center for Biological Diversity Headlines

New federal rule expands protected habitat for endangered …

Orcas are seen in Monterey Bay in this undated file photo. (Getty Images)

Protection sought for fish species found in SoCal river …

This undated photo provided by the United States Fish and Wildlife Service shows Santa Ana speckled dace fish. (Paul Barrett/United States Fish and Wildlife Service via Associated Press)

Jaguars reintroduced in the Southwest? Scientists call …

This Dec. 1, 2016 file image from video provided by Fort Huachuca shows a wild jaguar in southern Arizona. (Fort Huachuca via AP, File)This Dec. 1, 2016 file image from video provided by Fort Huachuca shows a wild jaguar in southern Arizona. (Fort Huachuca via AP, File)

Endangered-species decision expected on beloved monarch …

In this June 2, 2019, file photo, a fresh monarch butterfly rests on a Swedish Ivy plant soon after emerging in Washington. Trump administration officials are expected to say this week whether the monarch butterfly, a colorful and familiar backyard visitor now caught in a global extinction crisis, should receive federal designation as a threatened species. (AP Photo/Carolyn Kaster, File)

Gov. Newsom restricts use of rat poison in bid to protect …

P-47 is seen in the Santa Monica Mountains on Feb. 14, 2019. The big cat was found dead a month later after apparent rat poisoning. (National Park Service)

Environmental group threatens Newsom with lawsuit over …

Oil pumps and drilling equipment in an oilfield in Kern County are shown in this undated photo.(Credit: Brian van der Brug/ Los Angeles Times)

More Center for Biological Diversity

Renewable energy corporations fight endangered species …

Joshua trees are silhouetted against the setting sun in the Mojave Desert in this undated photo. (Credit: Gina Ferazzi / Los Angeles Times)

State panel grants temporary endangered species status …

The National Park Service released the photo of P-33, the first known mountain lion to cross the 101 Freeway northward into the Simi Hills in March 2015. Her remains were found three years later in the Los Padres National Forest.

California Considers Giving Mountain Lions Greater …

The National Park Service released the photo of P-33, the first known mountain lion to cross the 101 Freeway northward into the Simi Hills in March 2015. Her remains were found three years later in the Los Padres National Forest.

California Commission Lists Yellow-Legged Frog as …

A foothill yellow-legged frog is seen in an undated photo provided by the Center for Biological Diversity.

Climate Change Prompts Federal Agency to Designate …

A ringed seal swims in a water tank on July 26, 2013. (Credit: KAZUHIRO NOGI/AFP/Getty Images)

Least Tern Population Thriving After 34 Years on …

A least tern flies over Mill Pond on Aug. 2, 2018 in Centerport, New York. (Credit: Bruce Bennett/Getty Images)

Trump Administration Approved Importation of Lion …

A lion is seen in this file photo taken on August 15, 2019. (Credit: PHILIPPE HUGUEN/AFP/Getty Images)