Dr Gabrielle Walker examines ice, one of the strangest substances in the world. (R)
26/26 The nature and wildlife of Britain and Ireland. The Mighty Moorhen. (R)
5/6 Máire Bhreathnach and Jarlath Burns highlight important rural and environmental stories.
BBC Two Northern Ireland only
2/2 Ben Fogle and the team of scientists take a look at Australia's saltwater crocodile.
Wednesday 29 February 2012