The Ocean Census project is being led by researchers in the United Kingdom and Japan.
Experts behind the initiative say little more than 10 per cent of marine life has been discovered.
Μια ομάδα από το Πανεπιστήμιο Hong Kong Baptist ανακάλυψε ένα νέο τέρας του βυθού - μια μέδουσα με 24 μάτια Credit: Hong Kong Baptist University/Qiu/Cover Images