TheBiologistVol 70 No 4 • Winter 2023

THE MAGAZINE OF THE ROYAL SOCIETY OF BIOLOGY rsb.org.uk

INSIDE

E SSAY The evolutionary logic of age-related deterioration

INTERVIEW Dame Athene Donald on why we need more women in science

OPINION The growing case for free will

Killer

cultures

From working with whalers to ramming boats – the fascinating cultural diversity of orcas