Helen Mark visits Scotland to find that the freshwater pearl mussel faces new threats from thieves who kill all the mussels they gather in the hope of finding a precious pearl. Show more
Discover 11,128,835 listings and 280,378 playable programmes from the BBC
Helen Mark visits Scotland to find that the freshwater pearl mussel faces new threats from thieves who kill all the mussels they gather in the hope of finding a precious pearl. Show more
Intelligent speech, the most insightful journalism, the wittiest comedy, the most fascinating features and the most compelling drama and readings anywhere in UK radio.
