What, if any, are the evolutionary purpose of toenails?

# Biology

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts

What, if any, are the evolutionary purpose of toenails?
Gerard Marks

Post your answers (and new questions) below or send them to nq@theguardian.com. A selection will be published next Sunday.


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