On England's largest lake, Lionel Kelleway encounters a very rare fish, the Arctic charr.
BBC Radio 4
1/6 Keen walker Stuart Maconie takes in the stunning views on the Bath Skyline Walk.
40/40 What is the better approach to conservation, saving species or wilderness?
The Arctic is melting. The battle over its resources is just beginning. Tom Heap reports.
Before dawn, Lionel Kelleway awaits the arrival of barnacle geese on the Solway coast.
Helen Mark is in Wiltshire to find out about a very British obsession.
39/40 We search for stoats and weasels, once abundant and now little-seen.
Ten years on from the Foot and Mouth crisis, Caz Graham finds out how farmers have coped.
Helen Mark meets Bristol city dwellers developing a nature reserve on their doorstep.
38/40 Saving Species reports from Australia on how tourists are helping to save whales.
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