A stealthy, cat-sized forest carnivore in the weasel family, the Humboldt marten (once/also called the coastal marten) is so rare that it was thought extinct until rediscovered in 1996. Now, due to ...

For every county in the United States, the map below shows information on all the animals and plants protected under the U.S. Endangered Species Act as threatened or endangered. To see the number of ...

The Center’s Population and Sustainability program addresses the impacts on wildlife and the environment that are caused by human population pressure and destructive consumption and production. We ...

For the past century a federal program called Wildlife Services, part of the U.S. Department of Agriculture, has been slaughtering wildlife deemed “undesirable” by agribusiness. They’re usually ...

Climate change is the single greatest threat we've ever faced — not only to human society but to the Earth's web of life. The Center's Climate Law Institute was founded to unite our programs in ...

The resilient mountain lion goes by many names: puma, cougar, panther, catamount and even “ghost cat.” Over the past century in California, it has survived habitat loss and government-sponsored ...

Desert tortoises have lived in the deserts of California, Arizona, Nevada and Utah since the Pleistocene. In the early years of the 20th century, they still thrived within the Southwest's arid ...

DESCRIPTION: Roughly five feet in length, Mexican gray wolves generally weigh between 50 and 80 pounds. Their coats are buff, gray, and rust colored, often with distinguishing facial patterns. They ...

The distinct Alexander Archipelago wolves roam the islands and coastal mainland in the Alexander Archipelago, a network of more than 1,000 islands, glaciated peaks and deep river valleys in remote ...

The country has learned a lot since Rachel Carson's 1962 book Silent Spring alerted us to the hazards of poisonous chemicals. But pesticide use still poses major threats to imperiled wildlife and ...

Cactus ferruginous pygmy owls are named for the saguaro cactuses they live in, their rusty-colored stripes, and their small size. They’re as fierce as they are small: These 2.5-ounce raptors prey on ...

The big, beautiful Andean flamingo is one of three flamingo species native to the Andes. A relatively long-lived bird, this flamingo can travel vast distances — from 200 to more than 700 miles in a ...