Karin van de Wouw 15. Februar 2009, 13:21Hi Claudia,
Thanks for your reply! The species is Sepia officinalis, they come to the Dutch waters to mate. This picture was taken during their mating ritual. You can see, love is in the air! The male (above) is protecting his female (under) from other rivals. These are really interesting creatures and they were curious about us too!