## Articles

**Neil Pieprzak**tells the fascinating story of Andrew Wiles who, with intense devotion and in secret, proved a deceptively simple-looking conjecture that had defeated mathematicians for almost 400 years.

**Liz Newton**finds that having a small brain doesn't stop you doing great things.

**Peter Macgregor**explores the beautiful world of the infinite.

**Stefan Kopieczek**explores his story.

**José-Manuel Rey**revisits a scene of the film

*A beautiful Mind*.

**Lewis Dartnell**turns the universe into a matrix to model traffic, forest fires and sprawling cities.

**Charlotte Mulcare**uses milk to show how maths and stats can provide genetic answers.

*On the origin of species*, but also 200 years since the birth of its author, Charles Darwin. At the heart of Darwin's theory of evolution lies a beautifully simple mathematical object: the evolutionary tree. In this article we look at how maths is used to reconstruct and understand it.