1. Humans

    DNA suggests humans moved back into Africa

    About 3,000 years ago, human populations from western Eurasia migrated back into eastern Africa, specifically Ethiopia.

  2. Genetics

    Bacteria can be genetically tricked into self-destructing

    Manipulating microbes’ defenses could lead to targeted antibiotics.

  3. two cynomolgus monkeys

    Monkeys born with edited genes

    A DNA-snipping technique inspired by bacteria shows therapeutic promise.

  4. Health & Medicine

    Tumors grow faster in cancer-prone mice given vitamins

    The tumors killed the mice twice as fast as early-stage lung lesions in mice not given the antioxidants, researchers report.

  5. Genetics


    Readers discuss the names of really big numbers and whether Lamarckian evolution is making a comeback.

  6. Genetics

    Stone Age Spaniard had blue eyes, dark skin

    Genetics of 7,000-year-old skeleton suggests blond hair, pale skin came later.

  7. Health & Medicine

    Ancient history of canine cancer decoded

    A contagious cancer has been plaguing dogs for 11,000 years, a new genetic analysis reveals.

  8. Archaeology

    After 2,000 years, Ptolemy’s war elephants are revealed

    A genetic study sheds light on world’s only known battle between Asian and African elephants.

  9. Animals

    Jellyfish bloom in spring when winter ‘timer’ dings

    The coordinated appearance of the adult form of the animal is the result of a metamorphosis hormone that accumulates during winter months.

  10. Genetics

    Life at the Speed of Light

    Biology has come a long way from the days of mixing things in petri dishes and hoping something interesting happens. In his new book, Venter introduces readers to a future of precise biological engineering.

  11. Genetics

    Scorpion’s sting evolved from insects’ defensive proteins

    With a single genetic mutation, an insect’s defensive proteins can be transformed into a toxin that gives scorpions their signature sting, a new study shows.

  12. Genetics

    Microbe and human genes influence stomach cancer risk

    When genes of the bacterium and its human host evolve together, the strain is less harmful than that same strain in a person whose ancestors didn't encounter that particular microbe.