Charlotte Smith reports from the Livestock Event 2013.
BBC Radio 4
Steve Backshall presents the story and sound of the sandwich tern.
Helen Mark promenades with Timothy West along the pier at Clevedon and Weston-super-Mare.
Bovine TB, sunscreens from nature, and cleaning up space junk.
Why understanding the nature of dark matter and dark energy has left scientists baffled
BBC World Service
Bovine TB, sunscreens from nature, and cleaning up space junk. (R)
Friday 5 July 2013