RJ Mackenzie

All Stories by RJ Mackenzie

  1. Health & Medicine

    To detect CTE while alive, a test for another brain disease may help

    A protein that is a hallmark of Alzheimer’s disease may also ID a brain condition associated with head trauma in contact sports, early findings suggest.

  2. Health & Medicine

    A new sort of Alzheimer’s drug shows glimmers of promise

    Clinical trial results show an experimental drug lowered tau levels in the brain and slowed some memory loss, but the data came with a surprise twist.

  3. Animals

    This kea parrot is the first-known disabled alpha male

    With half a beak, Bruce has developed an innovative fighting style that has won the kea top status in his flock, videos and documented interactions reveal.

  4. Animals

    A bonobo’s imaginary tea party suggests apes can play pretend

    Apes, like humans, are capable of pretend play, challenging long-held views about how animals think, a new study suggests.