Best of Natural History Radio Folgen

Ep 12 of 24: Plant a tree in 73" became a national slogan and very large numbers of trees have been planted over the decades since. Ash die back has been widely reported in many programmes, especially news, in recent weeks and in this programme we ask whether the call to plant trees and desire to create new woodlands has in any way contributed to this fungal attack on Ash trees. We also ask how serious a threat diseases are to our trees. Also in the programme - News from around the world with our regular news reporter, Kelvin Boot. And we'll update you on the activities of the Open University's iSpot. Presenter: Brett Westwood Producer: Mary Colwell

Alongside Myriapod expert Steve Gregory, Living World is in Oxfordshire on the search for for centipedes and millipedes. Presented by Chris Sperring/Produced by Andrew Dawes.

In Pursuit of the Ridiculous: Ep 5/5 - The Purple Emperor Matthew Oates is a complete fan of the rare purple emperor butterfly but meets his match in Neil Hume, a self-confessed addict of this insectsand its favoured woods. Produced by Brett Westwood