News

  1. Anthropology

    Earliest Ancestor Emerges in Africa

    Scientists have found 5.2- to 5.8-million-year-old fossils in Ethiopia that represent the earliest known members of the human evolutionary family.

    By Bruce Bower
  2. Health & Medicine

    Marijuana may boost heart attack risk

    Marijuana seems to heighten the risk of heart attack in some people during the hour after which it is smoked.

    By Nathan Seppa
  3. Health & Medicine

    Arthritis drug succeeds vs. psoriasis

    People with the skin disorder psoriasis respond well to infliximab, a drug normally given to arthritis patients.

    By Nathan Seppa
  4. Health & Medicine

    Insulin shots fail to prevent diabetes

    Insulin injections failed to prevent type I, or juvenile-onset, diabetes from developing in children and young adults predisposed to the disease.