1. Animals

    Lucky survival for black cats

    A cat's black color may date back to a mutation that also protected the felines from diseases a long time ago.

  2. Animals

    Fish nests with pizzazz

    Fish known as three-spined sticklebacks go gaga over decorating their nests.

  3. Plants

    Slower growth, greater warmth

    A shift toward slower-growing trees might make Earth's climate warm up even faster.

  4. Fossils

    Dino-dining dinosaurs

    Some dinosaurs may have actually eaten each other.

  5. Environment

    Cliff snails and rock climbers

    Rock climbers can accidentally wipe out communities of cliff snails.

  6. Environment

    Less mixing can affect lake’s ecosystem

    Warming a large lake can cut microorganism populations and disturb its food chain.

  7. Environment

    The down side of keeping clean

    Chemicals we use to clean and disinfect could be damaging the environment by killing off algae at the food chain's base.

  8. Animals

    Shoot the poop

    Some caterpillars get rid of their waste with ballistic force.

  9. Fossils

    Fossil fly from Antarctica

    A tiny fly fossil has turned up about 500 kilometers from the South Pole.

  10. Brain

    Watching the Brain Learn to Read

    As kids learn to read, the left side of the brain gradually takes over from the right.

  11. Animals

    Childhood chills give bees six left feet

    If the bees are raised in cold temperatures, their dancing skills seem to go down the drain.

  12. Health & Medicine

    Gut germs to the rescue

    Many of the bacteria that live in our intestines may help keep us healthy.