DESCRIPTION: Female bald eagles can weigh up to 14 pounds and have wingspans of eight feet. Males weigh up to 10 pounds, with wingspans of six feet. Both sexes have brown bodies and acquire their ...

ETYMOLOGY: The word caribou comes from French explorers of eastern North America who derived it from the Micmac Indian term xalibu, meaning the “one who paws.” This is a reference to the caribou's ...

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 federal government has launched the process of listing the Mazama pocket gopher as threatened under the Endangered Species Act. It joins two other South Sound prairie species also on their way to ...

Monarch butterflies are important culturally and ecologically across North America. Generations have watched in wonder as yellow-and-black striped caterpillars fold into green-and-gold chrysalises and ...

The grizzly bear is so named because its hair is grizzled, or silver tipped, yet the name is commonly believed to be derived from “grisly,” meaning “horrible.” DESCRIPTION: A subspecies of brown bear, ...

DESCRIPTION: Forest elephants are the smaller of the two African elephant species. They also have straighter, thinner tusks, more rounded ears and differently shaped skulls. Both elephant species ...

DESCRIPTION: The Riverside fairy shrimp is a small, freshwater crustacean between 13 and 25 millimeters long, with females being slightly smaller than males. The animal's frontal appendage is ...

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 ...

It’s an invisible threat, but noise pollution is a major — and often deadly — menace to ocean wildlife. Just as there’s hardly a mountaintop free from the roar of airplanes overhead, there’s virtually ...

Freshwater mussels are some of the planet's most fascinating and underappreciated animals. With their beautifully colorful shells, diversity of shapes and interesting adornments — including ridges, ...

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 ...