The threat to thousands of jobs in the UK pig industry from imports of cheaper meat.
Liz Bonnin presents the raucous calling sulphur-crested cockatoo from Australia.
Margaret Cavendish and the birth of the scientific method.
Tesco named and shamed by the supermarket ombudsman for delaying payments to suppliers.
Liz Bonnin presents the sonorous trumpeter swan of North America.
Brian Cox and Robin Ince are joined by Shappi Khorsandi and ask 'What is race?'.
Professor Stephen Hawking delivers the first of his BBC Reith Lectures on black holes.
3/4 The women US astronauts of Mercury 13, who never got into space.
BBC Radio 4 Extra
The Californian state wants to add glyphosate to its list of carcinogens.
Liz Bonnin presents the Adelie penguin on a windswept Antarctic shore.