Once harvested almost to extinction in the northeastern U.S., beavers have returned in such huge numbers that they are becoming a nuisance in some areas.

Birder Mathew Tekulsky describes the bathing habits of birds, explaining the dependence of birds on water.

As eco-lodges sprout under the forest canopy and guidebooks roll off the presses, Peru stands ready to showcase itself as a bird-watcher's paradise.

A study in central Africa suggests that logging and tropical rain forests can coexist. Some environmental groups disagree.

A team of French scientists and historians is toasting centuries-old grape-harvest records for the insights they yield on past climate.

When cities run out of valuable real estate, planners look up. The search for green space is no exception.

Lake Vostok, an Antarctic freshwater lake buried by 2.5 miles (4 kilometers) of ice, may host a diverse community of microbial life-forms, scientists say.

National Geographic News interviews Darwinist Richard Dawkins on evolution and his latest book, The Ancestor's Tale.

The European Union's heavy fishing off West Africa may be causing a rise in poaching of Africa's wildlife as hungry Africans seek alternative protein, a new study suggests.

Indonesia's vast tropical peatlands have become a perennial fire hazard and possibly a significant contributor to global warming, a new study says.

Braving some of the world's coldest temperatures and wickedest winds, researchers are drilling ice cores in Antarctica to answer questions about global climate change.

Scientists have found that the ice in Greenland and the Arctic is melting so rapidly that most of it could be gone by the end of the century. Low-lying lands could be flooded and polar bears could go extinct, among other possibilities.

Birder Mathew Tekulsky reveals the effectiveness of a concealed location for viewing birds, as he describes the behavior of quail and jays in his yard.

With The Polar Express chugging into movie theaters and a fictional North Pole, we're finding out that sometimes truth really is stranger than fiction. Photo Gallery

Species in the air and on the ground are in deep trouble, according to two recent studies tallying steep declines in bird and amphibian populations.