The Water Type Alien archive — aquatic species, USO reports, and the history of underwater extraterrestrial intelligence
Water Type Alien Information: The Aquatic Archive
Two-thirds of Earth’s surface is water, and we’ve explored less of it than the surface of Mars. The Water Type Alien section covers the least-documented but potentially most ancient non-human presence on the planet: aquatic and amphibian extraterrestrial species whose domain is the ocean floor, submerged cave systems, and the deep freshwater bodies that have generated USO (Unidentified Submerged Object) reports for centuries. From the Mermaids of Japan to the Nommo of Dogon tradition, the aquatic alien presence threads through global mythology with a consistency that mirrors the Reptilian presence underground — and may be equally old.
This section collects articles on aquatic alien species profiles, USO encounter reports, and the theoretical framework connecting cetacean intelligence, pre-cetacean civilizations, and the possibility that Earth’s oceans harbor a non-human technological presence that predates human civilization entirely. The deep is not empty.
Information Index: Articles & Reports
Executive Summary:
Below the Surface — The Aquatic Alien Species and USO Research Archive
The Water Type Alien Information section indexes all articles on thinkaboutit-aliens.com covering aquatic, amphibian, and water-dwelling extraterrestrial species. The archive includes species profiles of reported aquatic humanoid entities, the Mermaids of Japan traditions, USO (Unidentified Submerged Object) encounter reports from military and civilian sources, and the theoretical connections between aquatic alien biology and the pre-cetacean civilization framework described in the Galactic Federation timeline. The section addresses the broader question of why Earth’s oceans — the planet’s largest unexplored habitat — remain a persistent source of anomalous sighting reports involving submerged craft, bioluminescent entities, and technology operating at depths that exceed known human capability.
“Pre-cetaceans divide into two groups: one group evacuates out of our solar system, and the other group begins to alter themselves physically so that they may enter the oceans and there find a haven.”
Contribute to the Water Type Archive
Do you have information, documents, or personal sightings of aquatic entities? Our database expands through the contributions of the community. Help us document the presence in our waters by sharing your story.






