What is embarrassment, why do we feel it and is it a good thing? Mike Williams finds out
BBC World Service
Jeremy Grange visits Bangor University's School of Biological Sciences. (R)
BBC Radio Wales
Chris Sperring is in Somerset during the last days of summer, listening for nightjars.
BBC Radio 4
Exploring Natural Resources Wales, the value of food festivals and a long lost wheat crop.
Miranda Krestovnikoff presents the world's most numerous bird, the red-billed quelea. (R)
BBC Somerset's weekly look at rural news, countryside issues, wildlife and local events.
Mark Stephen and Euan McIlwraith with a special programme from Shetland. (R)
BBC Radio Scotland
Paralysed man walks again after cell transplant