Around 500 whales, dolphins and porpoises are stranded around the coasts of Britain every year. The UK Cetacean Strandings Investigation Programme, based at London zoo, performs postmortems in an attempt to determine the cause of death and take samples for further research.joins programme manageras he dissects a dolphin found on Woolacombe beach in Devon on 3 DecemberWarning: If you're squeamish you should not watch this video