Prof Iain Stewart

His new series starts tomorrow - and from the clips he showed today at the BGS open day it looks excellent. Riding an alligator, plunging into Victoria falls... I don't know how he does it. I got to ask him a couple of questions - one being does he get vertigo - which will be obvious why when the series airs!

For a media person, he is fabulous to talk to - very knowledgeable, and happy to take all questions. I listened to him arguing with a climate change skeptic whilst waiting for my turn to ask a question - he just battered him with quiet reasonable answers!