Genetic details help sort out the bear family tree.
The federal government is protecting a small group of Alaskan beluga whales before it gets any smaller.
Divers in Australian reefs tallied hundreds of species new to science.
Roads, buildings, and other new development alter aquatic life in local streams.
A new survey doubles the existing number of western lowland gorillas.
UNESCO has added eight new sites to its list of irreplaceable natural habitats.
Some reptiles and amphibians that live on Madagascar’s highest peaks could face extinction.
When forests vanish, seed-spreading animals can come to the rescue.
When one link in Yosemite’s food web falters, the effects cascade.
Clearing of Myanmar's lush mangrove forests worsened the damage from Cyclone Nargis.
A new study highlights a feedback loop between global warming and a forest insect.
Climate change could bring grave water shortages to the American Southwest.
Satellites show severe deforestation in a rare monarch butterfly overwintering site.
What happens when rivers are allowed to flow on their own?
Most coral reefs are badly degraded, but Kingman Reef is the picture of health.
A new study finds that mangrove forests and shrimp farms can coexist--to some extent.
A new study shows that pollutants can take a century or more to show up in rivers and streams.
Biologists have announced many Antarctic discoveries during International Polar Year.
Oil spills foul shores in San Francisco Bay and the Black Sea.
Houses in fire-adapted habitats burned during some of the worst blazes in California history.
Vietnam's threatened, still-mysterious biodiversity gets a conservation connection.
The delta's levees are no match for a big earthquake.
A predator returns - and reverses decades of aspen decline.
Athens copes with the aftermath of a devastating fire.
Impacts from the IPCC's 2007 report.
The southeastern U.S. burned repeatedly in this season's extreme drought.
The muddy trails of bottom trawlers are visible from space.
Tinder-dry southeast Georgia is beset by the worst blazes ever seen in the state.
A Korean estuary is turning to farmland, endangering hundreds of thousands of shorebirds.
Biologists discover that 1 Asian frog species is really 18.
The web of roads across central Africa leaves wildlife at risk.
Can river sediment reach Australia's vulnerable outer reef?
A team of biologists is on a microbial mission around the world's oceans.
Should we conserve regions with higher numbers of species—or regions with more species variety?
An ongoing effort to reduce agricultural pollution in Florida's Everglades is seeing results.
Space Shuttle data will help conserve "invisible" waterways.
Raising animals is more damaging than transportation.
Global warming is stressing populations.