Board Thread:Fan-made Monsters/@comment-27950421-20170407195043/@comment-27950421-20170410034654

Well LoS's info on the Sea Snakes sensory abilities aren't all that accurate. They actually have very poor vision. In an experiment where scientists put femal sea snake pheromones on a rubber tube, the males looking for a mate were unable to see a difference until they were less than a meter away. It's why I out the part about sea snakes having poor vison in the profile. Though some tests have shown that at least one species of sea snake has skin that has photosensory ability (they can sense light with their skin).

As for hearing, well that's debatable. It really depends on how you define hearing. Snakes don't have ears, but their entire body is sensitive to vibrations. Which is basically what an ear is, a part of the body that is very sensitive to vibrations so they basically hear with their entire body. Sea Snakes are particularly sensitive due to their poor vision so a sufficiently loud noise or sound at a low enough frequency could probably be heard by them.

Over all sea snakes rely on hearing/tremor sense and smell to do things.