More from Chalkdust
Mathematics and pregnancy
Eleanor Doman and Qi Zhou swap percentages for placenta-ges
Surviving the bridge in Squid Game
E Adrian Henle, Nick Gantzler, François-Xavier Coudert & Cory Simon team up for a deadly challenge
Top ten vote issue 12
Have your say
The scutoid: a geometric building block of life
In 2018, scientists discovered a new shape that is essential to multicellular life
Eight things you didn’t notice in Issue 07
You'll never believe number 3!
Puzzles on square grids
How to make Sudoku more interesting