The North Atlantic right whale is one of the world’s most endangered whales. Once common along the eastern U.S. seaboard, the whale was hunted to near-extinction by the 1750s. While no longer pursued ...

DESCRIPTION: The giant Palouse earthworm can reach three feet or more in length, has light-pink skin, and emits a unique, sweet fragrance. HABITAT: This species inhabits permanent or semipermanent ...

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: Sleek giants with blue and gray coloring, bluefin tuna are one of the largest fish in the ocean and can grow to weigh more than 1,000 pounds. Their bodies are muscular, and they have ...

At the Center for Biological Diversity, we believe that the welfare of human beings is deeply linked to nature — to the existence in our world of a vast diversity of wild animals and plants. Because ...

For generations, Nevada’s big-eyed, black-freckled Dixie Valley toad thrived in a small desert oasis, hidden from humans. But by the time scientists described it in 2017, the toad was already ...

DESCRIPTION: Sturgeon have cartilaginous skeletons and a tube-like mouth. In the Kootenai River, they can grow to be larger than 200 pounds. They are gray in color. HABITAT: Kootenai River white ...

The vast majority of western dry forests are at risk of large, high-intensity fire because of the effects of poor forest management over the past century. The primary factors that lead to current ...

An analysis of oil and gas pipeline safety in the United States reveals a troubling history of spills, contamination, injuries and deaths. This time-lapse video shows pipeline incidents from 1986 to ...

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 ...

Exclusively in Iliamna Lake, Alaska’s largest body of freshwater, lives a small population of rare freshwater seals — one of only two freshwater harbor seal populations in the world. Alaska natives, ...

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 ...