Recent news in the world of genetics: the chromosomal makeup of Santa Claus (also known as Saint Nicholas, or Father Christmas) has a very individual genetic structure.[1] Far from the theory that Santa Claus does not exist, scientists have now discovered the generous saint is endowed with three extra chromosomes, explaining his very individual abilities and personality.

The most common genetic makeup of humans is 23 pairs, but Santa Claus has 3 additional chromosomes (known as Trisomy 25), which is believed to account for his high levels of activity around December 25th. In Europe this is more correctly known as Trisomy 24,[2] the presence of three additional homologous chromosomes (having the same structural features and pattern of genes) in addition to the 23 typical pairs. Inhabitants of many European countries open their presents on Christmas Eve (24th December), hence the difference in nomenclature.

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