Cuckoo: Wellcome Trust, CC BY 4.0
More from Chalkdust
Top Ten vote issue 17
Have your say
What’s hot and what’s not, Issue 16
Fashion is fleeting, Chalkdust regulars are not.
Prize crossnumber, Issue 07
Win £100 of Maths Gear goodies by solving our famously fiendish crossnumber
The croissant equation
Each time you eat a croissant you might be biting more than 500 layers of dough!
Christmaths carols II
Behind today's door... Another carol!
Issue 04 launch quiz
Tuesday 11 October, 7.15pm. Come along! Featuring hundreds of free copies of Chalkdust, free pizza, and the chance to purchase a Chalkdust T-shirt.