With us in the pod this week is Dr Ken Arnold, the Wellcome Trust's head of Public Programmes. With a remit to take science out of the lab and to the people, Ken's in charge of the extremely prestigious Wellcome Collection, which houses - among other things - Darwin's walking stick, a DNA sequencing robot, and a giant jelly baby.
Our second special guest is the Guardian's ethical living editor, Leo Hickman. He tells us about the real environmental and social costs of our holidays, as well as the problems with carbon off-setting, and why it's just plain wrong to go skiing in Dubai. Leo's new book, 'The Final Call: In Search of the True Cost of Our Holidays' is out in June. In the meantime, why not catch up with his other highly entertaining reads. Remember, he answers your ethical dilemas every week in the Ask Leo column. Like Kermit the Frog, he'll confirm that it's not easy being green.
Also up for discussion is the discovery of the so-called "fat" gene, a breakthrough in sperm cell research, and why dinosaurs probably tasted just like chicken.
This Webby Award-nominated podcast features, as always, the charm of Alok Jha, the insight of James Randerson, the dazzling wit of tech correspondent Bobbie Johnson, and production wizardry of Ben Green.
