Hen harriers are persecuted because they eat grouse. Can a solution be found?
Laurie explores the lives of the producers of some of the most expensive tea in the world.
Miranda Krestovnikoff presents the world's most numerous bird, the red-billed quelea.
6/6 Clare walks the final leg of her journey with Colin Spearman, designer of the route.
3/5 Prof Kathy Willis explores our changing relationship with plants.
5/5 Aleks Krotoski tells the story of how GPS helped navigation in the first Gulf War.
Miranda Krestovnikoff presents the Arctic specialist, the king eider duck.
Will there be a pumpkin shortage at Halloween? We hear from a grower in Lincolnshire.
The 'Hobbit' skeleton - rewriting human history, but still controversial 10 years later.
4/5 How the teashop and cake company Lyons built the first business computer in the 1950s.
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