Comedian Robin Ince and the editor of New Humanist Caspar Melville join us in the studio to talk about their mission to take the Christ out of Christmas in their show 'Nine lessons and carols for godless people'.
We look at a breakthrough in surgery: a transplant operation in Spain in which a patient's own stem cells were first used to grow the replacement organ.
As 'presumed consent' for organ donation is put on the back-burner in Britain, the pod looks at countries where donation is already mandatory.
Cloning woolly mammoths gets a mention, of course. We weigh up the chances of a mammoth resurrection with Dr Michael Hofreiter at the Max Planck Institute in Leipzig, Germany.
While we're on the subject of huge mammals, here's how to soothe a poorly elephant.
Plus, if you are a man and have a scar on your face, why you need to watch out for the ladies.
Science correspondents Ian Sample and James Randerson are on hand to guide us through.
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WARNING: contains explicit language
