It was scary to think about all the time and effort needed to construct a database of pheromones and semiochemicals of all living organisms. This required reading and summarizing a very large number of scientific publications with dedication and hard work. In this regard, I would like to thank Christa Pfaffenbichler for her assistance and devotion for making this website possible. I am grateful for her significant contribution to the Pherobase throughout the vast number of records she entered in the raw database; her ability to manage a large number of complex tasks during data entry is unmatched. Most of all, I wish to thank her for her enthusiasm, encouragement and interest during the establishment of the Pherobase website.