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24 April 2018, 15:55 | Updated: 24 April 2018, 16:00
Mystery Hour Question
What are moles and why do we have them? Matthew, Colchester
Name: Duncan, Acton
Qualification: Looked it up in the Encyclopaedia Britannica
Skin cells called melanocytes cluster in parts of the body to make a mole.
They are an accident of nature and can occur anywhere in the body though often on the back or face.