Two decades ago, the mathematician Moon Duchin spent her summers teaching geometry at Mathcamp, a program for mathematically talented teens. Campers contemplated notions such as how to prove whether a ...

There are many purposes that spots and stripes serve in nature, but how they form has been more of a mystery to scientists.

Four all-Premier League ties as Newcastle take on Spurs, Arsenal host Brighton, Liverpool face Palace and Wolves welcome Chelsea; three Welsh teams have reached the fourth round for first time; Round ...