1. Genetics

    Long before Columbus, seals brought tuberculosis to South America

    Evidence from the skeletons of ancient Peruvians shows that seals may have brought tuberculosis across an ocean from Africa.

  2. Genetics

    Debate rages over mouse studies’ relevance to humans

    Last year, researchers said rodents are not good mimics of human inflammation; a new study says the reverse.

  3. Health & Medicine

    Mummies reveal hardened arteries

    Mummy studies suggest heart disease is an ancient malady, not just the product of modern diets and sedentary lifestyles.

  4. Genetics

    Gene activity change can produce cancer

    Scientists have long thought that epigenetic changes, which alter gene activity, can cause cancer. Now they have demonstrated it in a mouse experiment.

  5. Genetics

    Airborne MERS virus found in Saudi Arabian camel barn

    The air in a Saudi Arabian camel barn holds genetic fragments of MERS, a new study shows.

  6. Genetics

    Hints about schizophrenia emerge from genetic study

    From thousands of genomes, researchers pinpoint dozens of DNA changes that may underlie schizophrenia

  7. Health & Medicine

    Two genes clear up psoriasis and eczema confusion

    Psoriasis and eczema are often mistaken for each other, leading to mistreatment. Testing just two genes could eliminate this confusion.

  8. Genetics

    Finally, some solid science on Bigfoot

    DNA analysis finds no Bigfoot, no yeti, two weird bears and one scientist on a quest for the truth.

  9. Animals

    Passenger pigeon population had booms and busts

    DNA says the birds recovered from hard times — until people came along.

  10. Health & Medicine

    Simple blood test detects heart transplant rejection

    Heart transplant recipients whose bodies are starting to reject the new organ might carry genetic warning signs.

  11. Genetics

    Gene variant tied to diabetes in Greenlanders

    Greenlanders who carry two copies of a newly discovered gene variant have upwards of 10 times the chance of developing type 2 diabetes.

  12. Life

    Here’s the poop on getting your gut microbiome analyzed

    One Science News writer donated her used toilet paper for science and learned that microbiome research is as uncharted as the Wild West.