"Conservationists decried a proposal on Monday by U.S. wildlife and marine animal managers to tweak rules tied to the federal Endangered Species Act, saying the plans would place "crippling" impediments to citizens petitioning to save imperiled creatures."

"Reveal has obtained never-before-released data from the U.S. Fish and Wildlife Service showing more than 300 species of migratory birds – from red-tailed hawks to American kestrels, turkey vultures to mallard ducks – have been killed legally across the United States since 2011 to protect a wide range of business activities and public facilities under what’s called the 'depredation permit' program."

"Honey bees, critical agents in the pollination of key U.S. crops, disappeared at a staggering rate over the last year, according to a new government report that comes as regulators, environmentalists and agribusinesses try to reverse the decline."

"Blue whales are vulnerable to cargo ship strikes because they are so used to being the largest animal in the ocean that they often fail to avoid the vessels, a Stanford University biologist has found."

"Native American tribes said on Friday they oppose U.S. government plans to strip grizzly bears in the Yellowstone National Park area of federal safeguards, ultimately opening the way for sport hunting of them in northern Rocky Mountain states."

"As the summer tourist season approaches on North Carolina’s Outer Banks, there’s a growing hope among horse advocates that the iconic wild horses of Corolla can be saved from a fate of inbreeding and deformities."

"The number of breeding males in the greater sage-grouse population of the United States and part of Canada has declined by 56 percent in recent years, in a sign of trouble for the ground-dwelling bird, a study released on Friday showed."

"A common type of pesticide is dramatically harming wild bees, according to a new in-the-field study that outside experts say may help shift the way the U.S. government looks at a controversial class of chemicals."

"If the circus is coming to town, that town won’t be San Francisco under a new regulation that would ban all performances by wild and exotic animals in the city."

"Montana has closed the hunting season on a wild herd of bighorn sheep, with pneumonia suspected of killing dozens of the animals whose seasonal mating rituals attract scores of wildlife watchers."