Calling someone a "rat" is no compliment, but a new study shows that rats actually are empathetic and will altruistically lend a helping paw to a cage-mate who is stuck in a trap.
Not only will rats frantically work to free their trapped cage-mate, they will do so even when there's a tempting little pile of chocolate chips nearby, the study reveals. Instead of leaving their pal in the trap and selfishly gobbling the candy all by themselves, rats will free their cage-mate and share the chocolate.
Christopher Miller samples sediments from an excavation site in South Africa. Archaeologists found layers upon layers of burned bedding material, indicating that the hunter-gatherers who lived here 77,000 years ago stayed for a long time.
Credit Courtesy of Christopher Miller
Leafy green sedge grass grows outside the Sibudu cave along the uThongathi River in South Africa. The sedge was arranged on the ground and covered with river wild quince leaves, which are known to repel insects.
Attorney General Eric Holder testifies before the House Judiciary Committee in Washington, DC. He faces tough questions about the Justice Department's "Fast and Furious" gun-control program.
Credit John Moore / Getty Images
Border Patrol agent Michael Wagenen attends a memorial service for slain comrade Brian Terry who was killed during a shootout near the U.S.-Mexico Border last year. His death pushed Congress to investigate "Fast and Furious" when two guns linked to the program were found near Terry's body.
Attorney General Holder got a bruising reception from the Republican-dominated House Judiciary Committee that put the Justice Department on the defensive.
Holder answered questions about the botched gun trafficking operation known as "Fast and Furious" in which federal agents tried to build cases against drug cartels. Instead, they lost track of hundreds of weapons that turned up at crime scenes along the Southwest border.
NPR's Debbie Elliott and Richard Gonzales spent a month on the road across the nation, reporting stories of economic struggle for the NPR series "Hard Times." They heard stories of people and places grappling with economic hardship, and also found a few bright spots along the way.
As the Euro crisis continues, Germany and France have proposed reforms to give European Union leaders more power to demand fiscal discipline from member states. The crisis has raised difficult questions about national sovereignty for many EU member states.
After seven seasons, TNT's "The Closer" is coming to a close. Brenda Leigh Johnson has led the major crimes department of the Los Angeles Police Department on the hit show since 2005. Played by Kyra Sedgwick, she catches killers, brings them to often tearful confessions, and gets the case closed.
Delegates from nearly 200 countries gathered for a U.N. climate conference in South Africa have been frustrated by a lack of consensus on how to reduce carbon emissions. Many participants are pointing to major emitters like the U.S. and China for the lack of progress.
Maricopa County Sheriff Joe Arpaio discusses the latest in the document release on his office's handling of many sexual assault cases over the years in El Mirage, Ariz., during a news conference Monday.
Originally published on Thu December 8, 2011 11:40 am
Are shoppers getting their money's worth when they choose a salmon filet wearing an eco-sticker?
A study released this week by the University of Victoria's Seafood Ecology Research Group found that most eco-labels on farmed seafood don't reflect better fish farming practices than other products on the market.