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 ...

1. What is this proposal to reintroduce jaguars to the United States? In December 2022 the Center for Biological Diversity petitioned the U.S. Fish and Wildlife Service to reintroduce endangered ...

Known for their 6-foot-long necks, distinctive patterning and long eyelashes, giraffes have always captured the human imagination. These amazing African animals have the highest blood pressure among ...

The Clean Air Act has protected the air we breathe for four decades. By curbing air pollution it has saved many thousands of human lives and improved public health, all while saving money and ...

The Center is taking a leadership role in applying law to the greatest environmental crisis of our time — an integrated approach to solving the climate crisis through global warming law. For years, we ...

Covering more than 25 million acres — about a fourth of California — the geologically diverse California Desert Conservation Area includes sand dunes, canyons, dry lakes, 90 mountain ranges, and 65 ...

This 2-foot-long, black-masked member of the weasel family once occurred in central grasslands and basins from southern Canada to Texas but is now one of the most endangered mammals in North America.

DESCRIPTION: Pangolins are mammals but are uniquely covered from head to tail with large, geometric scales made of keratin. Pangolins range in weight from just 4 pounds to a record 70 pounds.

DESCRIPTION: Gray wolves are the largest wild members of the dog family, with adults ranging from 40 to 175 pounds. Wolves' fur color is frequently a grizzled gray, but it can vary from pure white to ...

Plastic fills our dumps, homes and oceans. Plastic pollution takes a huge toll on wildlife: More than 700 species, including sea turtles, fish and whales, eat plastic or get tangled up in it. Plastic ...

Plastic accumulating in our oceans and on our beaches has become a global crisis. Billions of pounds of plastic can be found in swirling convergences that make up about 40 percent of the world's ocean ...

DESCRIPTION: Least Bell's vireos are small songbirds, generally no more than five inches in length, with a seven-inch wingspan. They have dull, ashy-grey heads; wings and tail are somewhat darker.