Sea Slug
Binomen n/a
Average height 1 ft. long (estimate)
Sapience Non-sapient
Aggressivity Harmless
Habitat Ocean Floor
Diet dd
Lifespan dd
Subspecies n/a
Status dd
Behind the Scenes

The Sea Slug is an underwater creature known to naturally produce raw ADAM, a substance capable of altering the cells in other organisms. It is apparently indigenous to the sea bed around Rapture (a man-made underwater city).


The slugs' ability to produce ADAM is the result of mutation caused by a large luminescent biomass in ocean rifts deep below Rapture. In order to produce the ADAM that is used by the citizens of Rapture, the slugs must first go through the embedding process. The embedding process is the implanting of the slug into a small child, aged 5-8. Through this procedure, the young girl becomes a Little Sister, and the slug creates ADAM with the child as its host. ADAM is then regurgitated by the Little Sister and used to create Plasmids (chemicals that can cause controlled mutations).

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