Three vital provisions give the Act its teeth. It’s “citizen-suit” provision lets public-interest groups and individuals petition and sue sluggish federal agencies to make sure the Act protects ...

Help support our cutting-edge work in the Population and Sustainability Program.

At the Center for Biological Diversity, we use path-breaking law, organizing and creative media to demand swift and just action from the federal government that reins in climate pollution from the ...

DESCRIPTION: Walruses are easily distinguished by their long, white tusks, cinnamon-brown skin, grizzled whiskers, and bodies full of blubber. Growing up to 3,750 pounds, male Pacific walruses are ...

Bluefin tuna are an ocean-going fish that grow up to 10 feet long and can weigh as much as 1,200 pounds. Unlike almost all fish, bluefin tuna are warm-blooded and able to regulate their body ...

The chambered, or pearly, nautilus (Nautilus pompilius) is a charismatic cephalopod species known for its exceptional spiraling, chambered shell. It belongs to a family that has barely changed since ...

DESCRIPTION: The Alameda whipsnake is a slender snake that generally grows to be three or four feet in length, with a narrow neck, broad head, and large eyes. Its body is sooty black or dark brown ...

DESCRIPTION: Steelhead can reach up to 35 pounds in weight, though average size on the central California coast is generally smaller. Steelhead are usually dark olive in color, shading to silvery ...

The Center for Biological Diversity was founded beneath the ancient ponderosa pines of New Mexico's Gila wilderness, where Kierán Suckling, Peter Galvin, and Todd Schulke met while surveying owls for ...

Each colored area on this map represents a different country's mining claim in the Clario-Clipperton zone. Map courtesy International Seabed Authority.

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 ...

Having collected the most recent census data from state and federal bald-eagle managers in each of the lower 48 states and the District of Columbia, the Center for Biological Diversity has determined ...