大象传媒

Dr Karl is joined by the new director of conservation at the Royal Botanic Gardens in Kew, Tim Entwhistle, for the science phone-in.

Underarm hair puts in an appearance. A podcast of the phone-in is available at bbc.co.uk/podcasts/5live.

In our first hour the director of communications at the Enough Project, an anti-genocide group based in Washington, Jonathan Hutson tells us that northern Sudanese tanks, artillery and troops are massing just outside the disputed border zone.

And in the final hour we hear from the 大象传媒's Daud Qarizadah in Kabul. He has stories of armed MPs and resurgent Taliban elements.