The urinary system does a lot of jobs to help our bodies filter out waste. Professor Hallux thinks his Biofiltration Extrapolator might be an improvement.  But can it do everything our urinary system does?

<p>The urinary system does a lot of jobs to help our bodies filter out waste. Professor Hallux thinks his Biofiltration Extrapolator might be an improvement.&nbsp; But can it do everything our urinary system does?</p>

We're the UK's children's radio station. Listen across the UK on DAB Digital Radio, on mobile and online at funkidslive.com.

<p>We're the UK's children's radio station. Listen across the UK on DAB Digital Radio, on mobile and online at funkidslive.com.</p>

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