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

Read a statement from 30 scientists, doctors and public-health experts from Harvard, Cornell, Rutgers and other universities about the "overwhelming evidence for the toxic effects of lead in humans ...

The rare dancing grouse of the Southwest, called the lesser prairie chicken, is known for the males' elaborate calls and showy displays of reddish-orange air sacs while they perform mating dances on ...

The northern long-eared bat — distinguishable from its close relatives, as one might presume, by its long ears — is a small bat associated with mature, interior forest environments. Unlike most other ...

In the forests of the Southwest, small trees dominate and comprise the vast majority of the fire risk to communities and the forest — in fact, approximately 90 percent of Southwest forest trees are ...

Critical habitat is key to the survival of endangered species. In fact, a study by the Center found, plants and animals with federally protected critical habitat are more than twice as likely to be ...

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 ...

The tricolored bat, formerly known as the eastern pipistrelle, is one of the smallest bats in North America. Its name may seem misleading, since these bats appear to be a solid yellowish brown, but ...

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 ...

The variability among living organisms on the earth, including the variability within and between species and within and between ecosystems. Biological diversity, often shortened to biodiversity, is ...

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 ...

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 ...