Notebook

  1. Animals

    Look beyond pest species to find beauty in cockroaches

    A few pest species give the group a bad name, but exotic roaches include an amazing diversity of colors and lifestyles.

    By Susan Milius
  2. Animals

    Indian frogs kick up their heels

    Some new species impress a potential mate with a dance.

    By Allison Bohac
  3. Animals

    Invadopodia

    Tiny footlike protrusions that enable a cell to invade neighboring tissues.

    By Marla Broadfoot
  4. Astronomy

    Young, hot exoplanet takes title for longest year

    Newly discovered exoplanet sits a whopping 2,000 times farther from its star than Earth does from the sun.

    By Christopher Crockett
  5. Life

    Polio could return after near eradication

    Polio was considered eliminated in the United States by 1979, but since then vaccination rates have slipped, prompting concerns about reemergence.