Things you may not have noticed (spoilers ahoy!)

[SlackerinDeNile]

You see it in the distance while riding the zeppelin, but I think that's it. According to reddit, it has an attack animation, so maybe it originally played a bigger role.

There's tons and tons of stuff that was cut or dummied out of the game, can't believe I missed this shark in the files, atleast they kept the mutant anglerfish.

Apparently Akers and the proxies also have a vent crawling animation according to some of the reedit soma community, it's a shame it was never used for any sequence in the game, it would have been terrifying.