Did you know that less than 5 of the oceans have been explored by scientists? br But we find many curiosities buried under water: br 1. Unidentified marine animals (i.e. 23 of marine species)br 2. Secret military basesbr 3. Noises emanating from the the depths of the Arctic Ocean: to this day, their origin has still not been be explained by researchersbr 4. Giant squids that can reach up to 13 metersbr 5. Underwater cemeteries like Neptune Memorial Reef, in Floridabr 6. Underwater ruins such as those of the island of Yonaguni in Japanbr 7. Lost submarines and linersbr 8. Skeletons of decomposing marine animalsbr 9. Statuesbr 10.