"The Obama administration [Friday] released two new proposed rules and a new policy designed to clarify how it designates and protects critical habitat for threatened and endangered species, a key bulwark against extinction."

"Pesticides are directly responsible for a massive decline in the bee population in North America and Europe, a new study out of Harvard University says."

"Radio waves disrupt the magnetic “compass” in robins, according to a study published on Wednesday that is likely to fuel debate about the safety of electronic devices."

"Federal protection status for a population of grizzly bears facing extinction in the mountains of Idaho and northwest Montana should be raised to endangered from threatened, environmentalists said in a lawsuit filed on Tuesday."

"Evidence of rat poison is found in a sickly puma whose territory includes Griffith Park. Researchers suspect a link between poisons and mange."

"The California Fish and Game Commission on Wednesday postponed a decision on whether to afford gray wolves protection under the state's Endangered Species Act."