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  • 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.
    Grass Mattress Was A Stone Age Bed And Breakfast
    Scientists have found what they say is the world's oldest bed: a 77,000-year-old grass and leaf mattress in a cave in South Africa. And the people who made it were crafty: Atop layers of sedge grass were leaves from a plant known to repel insects — key for living in buggy, dank caves.
  • Capt. Art Gaeten holds a blue shark that was caught during a research trip in Nova Scotia. Scientists are studying the impact of swordfish fishing methods on the shark population.
    Is Sustainable-Labeled Seafood Really Sustainable?
    Industry demand for the "sustainable seafood" label, issued by the Marine Stewardship Council, is increasing. But some environmentalists fear fisheries are being certified despite evidence showing that the fish population is in trouble — or when there's not enough information to know the impact on the oceans.
  • Exclusive First Read: 'From Scratch: Inside The Food Network'
    Read an exclusive excerpt of Allen Salkin's new history of the Food Network, From Scratch. It's an affectionate but unsparing look at a scrappy little startup network that became a national broadcasting behemoth — and brought people like Emeril Lagasse and Rachael Ray into millions of homes.
  • What Did Mayans Think Would Happen in 2012?
    What is supposed to happen in 2012? Will the world end? Does it mark the dawn of a new age of consciousness? We speak to the author of "2012: Science & Prophecy of the Ancient Maya."
  • Ellen Lenox Smith tends her indoor marijuana garden. Rhode Island patients currently must grow their own or obtain it from "caregivers" licensed by the state to cultivate a limited number of plants for up to five patients.
    Medicinal Marijuana: A Patient-Driven Phenomenon
    Some patients swear by it, but science has yet to catch up with their claims. Even so, 14 state legislatures and the District of Columbia have carved out a big exception to the usual definition of "medicine."
  • Floating debris found by the SEAPLEX expedition. The debris at the center of the North Pacific Ocean has the potential to damage marine life and alter the biological environment.
    New Study Finds Fish Eating Plastic In Pacific Ocean
    UC San Diego Researchers
  • Teacher Annie Bhatnager helps a student with an assignment in the Newcomer class during the first week of school.
    Teaching New Immigrants Basic English Alongside Equations
    As the new school year starts, a Las Vegas middle school is trying to keep up with a flood of immigrant and refugee students, known as "Newcomers", who don’t speak English.
  • Francis Collins Explores God and the Human Genome
    The conflict between God and science rages on in American society. Francis Collins, director of the National Human Genome Research Institute, has found a balance as a scientist and a born-again Christ
  • Lizard Starvation, Extinction Tied To Climate Change
    Scientists say around the world, many local populations of lizards are going extinct. The numbers are serious and will get much worse as the world's climate warms, a new study warns. It's surprising news: Lizards already live in some of the hottest places on the planet.
  • Smell-o-vision prototype developed by researchers at UCSD Jacobs School of Engineering.
    Smell-O-Vision Has Pleasant Aroma For San Diego Researcher
    The latest in TV technology bypasses your eyes and aims straight for your nose.
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