Sumatran tiger (Panthera tigris sumatrae). Today mathematician Alan Turing is world-famous because he helped the Allies achieve victory against the Axis powers by deciphering an encryption that was ...

Turing’s ideas explain how some animal patterns arise. A spot-maker is the most basic version of Turing patterning. It involves two key substances, or morphogens, as Turing called them, that can move ...