A new study shows that the butterflies' antennae are key.
Maine's fall colors are starting to dazzle. Where to drive to see the best fall foliage? Northern Maine is providing the best color.
The tiny Pacific nation is fighting to protect more than 130 species fighting extinction in the Pacific Ocean.
Scientists say the Greenland ice sheet is losing about 7 billion cubic feet of ice a year. Now, they are just finally beginning to uncover some reasons why its been shrinking.
A study found that up to 30 percent of the geese now forgo migrating to warmer regions of the Pacific coast.
Waters churn as advocates tussle over sport-fishing contests.
Obama pledged to tackle global warming in his presidential campaign. Now the world waits to see if he takes a leadership role at a climate change meeting at the UN Tuesday.
Sweeping changes could affect the United States' management of oceans, including offshore energy development.
Photos reveal the first sighting of the elusive seabird, the Fiji petrel.
Some 60,000 metric tons of radioactive waste is stored at nuclear power plants across the country, awaiting federal action that’s already a decade late.
Scientists find that certain beetles produce a substance called limonene, which gives lemons and oranges its citrusy odor, to defend against predators.
The big cats need plenty of space, which can put them in conflict with expanding development in the state.