Common octopus, Octopus vulgaris, is an extremely curious animal towards everything that happens in its territory and this makes it one of the most intelligent species in the underwater world. In this video we see him emerge from his den intent on studying the camera specially placed on the seabed to test his curiosity.We identified it thanks to the presence of some fish such as the Sciarrano (Serranus scriba) and Donzella pavonina (Thalassoma pavo), intent on scrutinizing its den probably waiting for some food waste. …