brain size

  • How mammals evolved big brains

    Brain proportions were driven by body size and cataclysmic events.

    Scientists have now pieced together a 150-million-year timeline to determine how mammals evolved big brains.An in...

    History April 29, 2021
  • Conversation

    Are there male and female brains?

    Computers suggest yes, but it may just be head size.

    By Cordelia Fine, University of Melbourne, and Carla Sanchis Segura, Universitat Jaume IHow useful are the well-k...

    Biology August 11, 2020
  • The shrinking of the shrew

    A common mammal shrinks its skull and brain every winter before growing it back again.

    A common species of mammal found across the northern hemisphere shrinks its skull by an extraordinary 20% in winter. ...

    Biology October 23, 2017
  • Chubby waistline? Blame your big brain

    There are trade-offs in a range of areas.

    Humans aren’t just more intelligent than our great ape relatives. We are also fatter and our big brains could be to b...

    Biology May 4, 2016
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