Watcher (Barotrauma)

The Watcher is a octopod-like creature from Europa, mostly resembling the look of a common octopus. They are named due to their very large eyes.

Biology
Watchers resemble Earth's octopuses in overall anatomy; a large rounded head with very large eyes and several tentacle-like limbs branching from the base of the body. They have very thick armor around the head and base for protection, but this, accompanied by no fins for movement in water, make it a fairly slow swimmer.

They are visually orientated creatures, and while they have excellent vision, they are also deaf.

Behavior
Watchers are docile creatures, and fairly curious ones, similar to the Earth octopus. They've been reported to peer into the windows of passing submarines to observe the happenings from within, but don't seem to actively go out of their way to attack any Humans or vessels unless they are provoked.

With this in mind, many explorers tend to leave these creatures alone, as engaging in a fight isn't considered a good option due to their very resilient armor, and docile behavior.