How Bizarre

  1. Health & Medicine

    Parasite gives a man cancer

    Tapeworms can kick parasitism up a notch to become cancer, a case in Colombia shows.

    By Tina Hesman Saey
  2. Life

    A cloud of microbes surrounds a person

    People are surrounded by a personal cloud of bacteria.

    By Sarah Schwartz
  3. Planetary Science

    Mysterious circles appear, grow on comet

    The Rosetta spacecraft caught five circular depressions quickly spreading across a region of comet 67P.

    By Christopher Crockett
  4. Anthropology

    Minutes after encountering danger, lemurs yawn

    Madagascar primates yawn within minutes of encountering threats.

    By Bruce Bower
  5. Animals

    A monkey uses a stick to pick its teeth and nose

    A wild bearded capuchin monkey in Brazil was caught using tools to pick its nose and teeth.