TWiM 32: Not the shadow biosphere

On episode #32 of the science show This Week in Microbiology, Vincent, Elio and Michael speak with Rosie Redfield about her evidence that a bacterium cannot grow on arsenic instead of phosphorus.

If you only listen to one episode of TWiM all year, make it this one – Rosie is terrific!

You can find TWiM #32 at

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