How could they be anything other than unique? A fingerprint is a &#x27;function&#x27; of a unique individual. You might as well claim that human faces aren&#x27;t unique.<p>Bear in mind, of course: the degree of uniqueness between two samples is determined by the metrics used to distinguish between them. I don&#x27;t know the state-of-the-art with fingerprint analysis, but with a purely physical measure, how can fingerprints <i>not</i> be unique?