Tom Holland explores how our ancestors sought to explain the remains of dinosaurs. (R)
15/26 Euan is at the Scottish Smallholders Festival and Sarah learns about Shetland wool. (R)
BBC Two Scotland
20/35 In the Breton province of Finistere, Neil Oliver meets a lighthouse keeper.
5/6 A toirt sùil air am buaidh a th'aig a mhuir air dha saor-eathraichean. (R)
1/2 Evan Davis examines a vast tunnel-boring machine carving a new railway deep under London.
4/8 A look at humans who live in the depths of the rainforest, a perilous environment. (R)
3/3 Will the Loch Lomond Park Authority give permission for Scotland's first gold mine? (R)
1/8 Local celebrities explore Northern Ireland's natural world. (R)
BBC One Northern Ireland
Thursday 11 October 2012