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  1. Life

    When a fungus invades the lungs, immune cells can tell it to self-destruct

    Immune system resists fungal infection by directing spores to their death.

    By Laurel Hamers
  2. Neuroscience

    Brain chemical lost in Parkinson’s may contribute to its own demise

    A dangerous form of the chemical messenger dopamine causes cellular mayhem in the very nerve cells that make it.

    By Laura Sanders
  3. Animals

    Why bats crash into windows

    Smooth, vertical surfaces may be blind spots for bats and cause some animals to face-plant, study suggests.

    By Helen Thompson
  4. Paleontology

    Woolly rhinos may have grown strange extra ribs before going extinct

    Ribs attached to neck bones could have signaled trouble for woolly rhinos, a new study suggests.