Natasha Breed on how the population of Kenya's expanding fast, urban areas are eating up the countryside. And it's proving disastrous and sometimes fatal for the country's wildlife. A weird fungus which grows out of the heads of caterpillars is being harvested in parts of the Himalayas. Craig Jeffrey, who's been investigating, says it's proving a valuable cash crop for some of the mountain villagers. Latvia has the fastest-growing economy in Europe. Damien McGuinness has been to the capital Riga to see how they've made austerity cool. The Nigerian president's been speaking of the importance of family planning. The BBC's Jane Dreaper's been to a part of his country where having seven children is far from unusual. And Anna Horsbrugh Porter is one of the BBC World Service staff who're leaving their headquarters in London, Bush House in the Strand. She's been talking to colleagues about a much-loved broadcasting institution.