Use mathematical and/or computational representations to support explanations of factors that affect carrying capacity of ecosystems at different scales.

  1. Health & Medicine

    New ‘Heartland’ disease emerges in U.S. Midwest

    A new viral disease causes major pain and flu-like symptoms. At present, no treatment or cure exists.

  2. Microbes

    Return of the giant zombie virus

    Scientists have discovered a new type of virus in Siberian soils. It's the largest virus ever discovered. And guess what: It could infect cells even after 30,000 years in cold storage.

  3. Animals

    First living fish leaves ‘endangered’ list

    Twenty-one years ago, a minnow facing a high risk of extinction was placed on the U.S. Endangered Species List. With help from scientists, the fish appears to have largely recovered. It’s the first ‘listed’ fish to do so.

  4. Earth

    Ancient heights

    Leaf fossils can help track the rise and fall of mountain ranges.

  5. Animals

    A hangout for elusive blue whales

    Scientists have now found a place off southern Chile where blue whales gather.