|Science & Medicine||171|
5 live's science podcast, featuring Dr Karl, plus Dr Chris and Naked Scientists Chris Smith and Kat Arney with the hottest science news stories and analysis.
December 6th, 2010
Episode 4 of 680 episodes
Under the microscope this week we've got the bacteria that made headlines by using arsenic instead of phosphorus; so is this a tantilising sign that life evolved on Earth more than once? We also hear how a patient with an inflammatory bowel disease treated himself with a dose of worms.