| | A lion mounts a horse, a skull is knifed, China celebrates its first space walk, and more in our picks of the week's news photos. |
| | The annual Ig Nobel Prizes are given to scientists whose work made readers both laugh and think. This year's honors went to research on everything from puzzling placebos to spermicidal soda. |
| | Singing to females lights up reward centers in male zebra finches' brains, a new study shows. The effect possibly "addicts" the birds to courtship. |
| | Some bald eagles are turning to seabirds as their main food, and in a roundabout way, the new diet is traceable to a 1990s otter collapse, researchers say. |
| | The U.S. adventurer's plane "disintegrated" when it hit a California mountain, experts said. The presence of bears and other scavengers may help explain why so few remains have been found. |
| | A bear wandered into a Subway sandwich shop in Canada, startling an employee, and sampling some food before letting itself out. |
| | Chicken poop to power thousands of homes; urban bears live fast and die young; and more. |
| | Periods of high solar activity create features that make the sun appear to have bigger "love handles," according to a new study of the star's true shape. |
| | Truffle hunters in France believe global warming has led to an increase in parasitic attacks on wild truffles—spurring a boom in hothouse versions of the luxury fungus. |
| | The entire planet comes into stunning focus using a new technique that removes atmospheric distortion. |
| | People may have lived in Florida over 10,000 years ago—earlier than previously thought—according to evidence uncovered by National Geographic researchers. |
Real-time, worldwide earthquake list for the past day