Environmental Issues: Endangered species

The State of the Birds report reveals troubling declines of bird populations during the past 40 years—a warning signal of the failing health of our ecosystems.

Some of these animals will be extinct in less than 100 years

Although oceans cover 70% of our planet, their organisms and ecosystems are far less well known than those on land.

There is widespread agreement that biodiversity loss must be reduced, yet to alleviate threats to plant and animal species, the forces driving these losses need to be better understood.

The U.S. government has agreed to study Alaska's ice seals for possible listing under the Endangered Species Act.

The best way to save a species is to preserve a genetically viable population in an ecosystem that can support it.

This article discusses research to determine why such insect-eating birds as nighthawks, nightjars, kingbirds, and pewees are disappearing from some of the skies of North America.

Five countries that created a treaty nearly four decades ago to protect polar bears through limits on hunting issued a joint statement identifying climate change as ''the most important long-term threat'' to the bears.