Jim al-Khalili discusses digging up dinosaurs in remote places with Professor Mike Benton
BBC World Service Online
Spanish lettuces labelled with the British Red Tractor logo - what went wrong?
BBC Radio 4
Martin Hughes-Games presents the redshank.
As more rubbish is put in landfill and the human population grows, can this help wildlife?
Tom Heap meets a man determined to rid the world of plastic.
Adam Walton commemorates the centenary of the death of biologist Alfred Russel Wallace.
BBC Radio Wales
A from report Kigali on how technology is transforming Africa
4/4 Michael Blastland asks if finding something disgusting influences moral judgement. (R)
Wednesday 6 November 2013