"Dozens of the nation’s leading conservation scientists on Thursday expressed strong concern over a U.S. Fish and Wildlife Service official’s order to override a recommendation by federal biologists that wolverines deserve threatened species status."

"New herds of genetically pure wild bison may once again roam vast expanses of the American West where the iconic animal has been absent since the end of the 19th century, under a tentative plan federal officials advanced on Wednesday."

"The House passed legislation Tuesday that would modify the Endangered Species Act."

"ST. LOUIS, Mich. – Jim Hall was mowing the town’s baseball diamond when he felt a little bump underneath him. “And there it was, a dead robin,” he said."

"Two major feeding grounds for Pacific blue whales are bisected by busy shipping lanes near major seaports in San Francisco and Santa Barbara, Calif., a new study reports."

"An intrepid bird called the red knot migrates from the southern tip of South America to the Arctic and back every year. But changes in climate along its route are putting this ultramarathoner at risk."

"Federal wildlife refuges in the Northwest and Hawaii will phase out a class of pesticides that are chemically similar to nicotine because they pose a threat to bees and other pollinators key to crop growth."

"ROCKLAND, Maine — Decades after gray seals were all but wiped out in New England waters, the population has rebounded so much that some frustrated residents are calling for a controlled hunt."

"CASPER, Wyo. — In a new oil field among the rolling hills near here, Chesapeake Energy limits truck traffic to avoid disturbing the breeding and nesting of a finicky bird called the greater sage grouse. To the west, on a gas field near Yellowstone National Park, Shell Oil is sowing its own special seed mix to grow plants that nourish the birds and hide their chicks from predators."

"LEES FERRY, Ariz. — In this corner of America known for its vast landscapes, rugged mountains and deep river canyons, signs of the havoc created by the minuscule tamarisk beetle are everywhere."