"Cutting through rhetoric that so often dominates debate over Canada's oil sands, a new report by a prominent academic group is a comprehensive snapshot of the failings and successes of all the industry's stakeholders and raises hope for a new era of oversight."

"The Justice Department on Wednesday is expected to seek to join civil lawsuits stemming from the Gulf of Mexico oil spill, the first major federal legal action in the disaster, according to people familiar with the matter."

"The U.S.-raised animals we eat consumed about 29 million pounds of antibiotics in the last year alone, according to a first-ever Food and Drug Administration accounting of antimicrobial drug use by the American livestock industry."

The musk ox, an Arctic species that is a holdover from the Pleistocene, survived terrible climate changes when mastodons and sabertooths went extinct. That may be as much a result of its social structure as its shaggy coat.