From February to June each year, an extraordinary phenomenon occurs along the Catalan coast. Although this has been known for decades by the crews of fishing boats in the area, it has been little studied in the field of scientific research before now: the presence of fin whales. With the scientific name Balaenoptera physalus, the fin whale can reach 24 metres in length, making it the largest species that can be found in the Mediterranean. It is a spectacular animal, one which is intelligent and that lives in social groups, albeit little is actually known about the behaviour of these groups. In addition, it is a protected species that is in danger of extinction. The Edmaktub Association has run its Fin Whale Project (Proyecto Rorcual)  since 2013 with the double objective of incr