1/7 Sound recordist Chris Watson captures the dramatic sounds of Iceland's dynamic landscape.
2/2 Mark Stratton visits Papua New Guinea to search for Queen Alexandra's Birdwing.
1/2 Matthew Hill investigates allegations of illegal bird hunting in Malta.
5/8 Chris Sperring searches for sika deer and how they're fitting into the Dorset countryside.
4/8 Hedgehogs are in decline. Paul Evans separates the science from the sentimentality.
3/8 Brett Westwood discovers how the fortunes of Britain's lampreys could be improving.
2/8 Brett Westwood finds out why conservationists are dropping logs in rivers and streams.
1/8 Brett Westwood finds out why woodpecker numbers in the UK are both up and down.
8/8 James Aldred visits the Grove of Titans and climbs the world's tallest tree.
7/8 James Aldred travels to California in search of the world's biggest trees.