• Question: Why do we Poo ? (I just want to know I'm not trying to be funny )

    Asked by sciencecheese to Ed, Hayley, Jason, Nathan, Sophie on 20 Mar 2013.
    • Photo: Hayley Evers-King

      Hayley Evers-King answered on 20 Mar 2013:

      It’s a sensible question! The answer is that not everything we eat is used up as energy. Some of it is undigestible and some is excreted as waste products (poo and wee!).

    • Photo: Jason King

      Jason King answered on 20 Mar 2013:

      As well as all the stuff we eat that we can’t digest, our body also needs to get rid of all the bits that wear out, such as old red blood cells. That’s what makes it brown.

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