Ceadeus Ecology

In-Game Info
Legendary Elder Dragons known as both 'shining giants of the depths' and 'great sea dragons'. Not confirmed to exist until recently. The Moga quakes were due to a Ceadeus butting its abnormally long horns into the earth.

Taxonomy
The name Ceadeus may be derived from Cetacea, the order of the animal kingdom that includes whales. This can be seen as a reference to Ceadeus' whale-like appearance. Ceadeus can also be taken as Seadeus, or Sea God. Its head looks relatively similar to the long-extinct dunkleosteus. It may also refer to Cetus, a sea monster from Greek mythology. It can also come from the Latin word caelem, meaning heaven, and deus, meaning god, thus being a heavengod. Or from the latin word caedes, meaning bloodbath.

Habitat range
It is speculated that due to the Ceadeus' age and its rarity that these creatures generally live in deep caverns or fissures. Its size would vastly limit its ability to travel along rivers or in shallow waters. Ceadeus is the only monster in the series that is fully aquatic; unlike Lagiacrus and other Leviathans, it has no way of exiting the water and spends its entire life in the depths of the ocean.

Biological Adaptations
The Ceadeus seems to have adapted to its environment remarkably well. Its strong tail and fins enable it to travel very rapidly for its size when called for. Additionally, the Luminescent Organs located in the Ceadeus' body could possibly be used to attract prey or ward off threats. As a side note, the light emitted from the organs as the Ceadeus prepares for a water blast greatly resembles a god of possible Viking or Norse origin, as the horns resemble the commonly assumed (though disproven) trademark helms of Norse mythology. Note also that when the hunter first attacks the Ceadeus, it appears not to notice. This may be due to its hide being incredibly tough, it seems to only take action when sufficiently damaged.

The Ceadeus' horns constantly grow, and thus they are forced to scrape them across rough, jagged surfaces to file them down to mangable size over time. The Ceadeus that was terrorizing Moga may have been an adolescent going through a spur of growth and, unable to find a suitable surface to file, attempted to use the ocean floor and smooth cavern walls in a desperate attempt to shorten it's quickly growing horn.