Social networks help raise money to save the endangered mountain gorilla.
A new study shows that the butterflies' antennae are key.
The tiny Pacific nation is fighting to protect more than 130 species fighting extinction in the Pacific Ocean.
Photos reveal the first sighting of the elusive seabird, the Fiji petrel.
The big cats need plenty of space, which can put them in conflict with expanding development in the state.
A survey of more than 100 ponds found that the number of frogs has declined in Australia's second-largest city.
Warmer temperatures have allowed the Duke of Burgundy butterfly to flourish this year.
New scientific discoveries about plants and snails.
Scientists look at why the numbers of caribou are declining.
Beekeeping gains in the concrete jungle, despite some concerns.
Florida considers bounty hunters to deal with pythons, which threaten people and endangered native species.
Scientists released guppies into two rivers to see which would survive.
Scientists have long wondered if animals migrated to Ellesmere Island seasonally or stayed throughout the year. Now, they have some clues.
Scientists reveal the effect of fishing on cod size and question turning crops into fuel.
Degraded landscapes can be returned to natural beauty and usefulness.
Deforestation destroys the habitat of the largest animal to live primarily in trees.
While dodging bullets and spears of poachers and rebels, Virunga National Park ranger Innocent Mburanumwe can put a 700-pound gorilla at ease with a few strategic grunts.
Climate change, oil spills imperil birds, according to landmark report.
Climate change is pushing marine animals out of their protected areas. Ways must be found to ensure that their protection migrates with them, naturalists say.
As lethal fungus spreads, captive amphibians are bred for eventual return to the wild.