Bioinformatics scientists at Friedrich Schiller University in Jena (Germany) have discovered that the number of theoretically possible fatty acids with the same chain length but different structures can be determined with the aid of the famous Fibonacci sequence. As they explain in Scientific Reports, the number of possible fatty acids with increasing chain length rises at each step by a factor of approximately 1.618, and therefore agrees with what is called the ‘Golden Mean.’ The ability to calculate the number of possible fatty acids is of great importance for their chemical analysis (‘lipidomics’). This finding can also be used in synthetic biology and in other applications.