TheBiologistTHE SOCIETY OF BIOLOGY MAGAZINE ■ ISSN 0006-3347 ■ SOCIETYOFBIOLOGY.ORG VOL 61 NO 5 ■ OCT/NOV 2014

SPIN DOCTORS Using spider silk’s incredible properties in medicine

INTERVIEW

SIR MARK WALPORT The Government’s chief scientific adviser

RESEARCH

IT ALL ADDS UP Replacing experiments with maths

ANIMAL BEHAVIOUR

BAT HUNTERS The unlikely prey of seed-eating birds