Image for 28/02/2012Not currently available on BBC iPlayer

Duration: 30 minutes

Matt Baker and Alex Jones are joined in the studio by Lord Andrew Lloyd Webber joins. Justin Rowlatt meets Dr William Frankland, a 99-year-old expert on allergies who is still working today. Miranda Krestovnikoff takes a look at mermaid's purses - egg cases laid by sharks and rays to protect their young.


Matt Baker
Alex Jones
Interviewed Guest
Andrew Lloyd Webber
Justin Rowlatt
Miranda Krestovnikoff


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