The ‘alalā is the only surviving native crow species in Hawaii. Its decline is blamed on a loss of habitat due to logging, as ...

The US is limiting imports of used cooking oil for biofuels, disqualifying foreign supplies from tax credits. This decision ...

The week began with a biting cold snap that hammered much of the U.S., the product of a jet stream that slips out of its ...

New research shows about a quarter of animals living in rivers, lakes and other freshwater sources are threatened with ...