Decades ago, Paul Erdős used randomness to illuminate the vast and weird world of networks. Now mathematicians are making his ...

Today:Early fog in the far southwest clears quickly. Most areas stay dry with sunshine and variable cloud, though northern and northeastern regions may see isolated showers. Light winds overall, ...

To measure the species richness on the school field in areas in which the grass is regularly and irregularly cut.

Collected your results today? Email your best pictures and captions to jumpingforjoy@telegraph.co.uk or capture your parents looking their proudest and email proudparents@telegraph.co.uk. 16.00 Thanks ...