Why WhatsApp is dominating the stage in the build up to elections in Tanzania (R)
BBC World Service
1/3 How a single cell transforms in the first eight weeks after conception. (R)
BBC World Service Australasia, Europe and the Middle East only
BBC World Service Online, Americas and the Caribbean, South Asia, UK DAB/Freeview only
Lord Krebs says any success claims following the pilot badger culls is misleading farmers.
BBC Radio 4
Chris Packham presents the North Island kokako from New Zealand. (R)
BBC World Service East Asia
4/4 Will the latest advances in biomedical sciences ever lead us to the perfect body?
BBC Radio 4 Extra
BBC World Service Europe and the Middle East
Cyfle i glywed rhai o bigion 'Galwad Cynnar' eto.
BBC Radio Cymru
BBC World Service except Americas and the Caribbean, Australasia
BBC World Service Australasia
New research on how society works. Presented by Laurie Taylor.
BBC Radio 4 FM
6/10 Three tiny orphaned jaguar cubs are trained to be wild again. (R)
1/26 Scottish nature and wildlife series. In this programme, a look at the Red Deer. (R)
3/4 When one of her hives swarms, Martha's neighbours leap to the rescue. (R)
1/4 Bardsey boatman Colin Evans gets engine trouble. (R)
BBC Two Wales
Film about the equation used to estimate the number of extraterrestrial civilisations. (R)
The National Parks are exploring new commercial opportunities. How far should they go? (R)
Zoologist and explorer George McGavin searches for the world's most spectacular swarms. (R)
2/4 Spring arrives, marking the start of an epic race for life where timing is everything. (R)
Mushroom enthusiast Richard Fortey explores the strange and surprising science of fungi. (R)
The latest tech, including gyrating exoskeletons, smelly phones and pizza recognition. (R)
BBC News Channel