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The Abyss ecosystem is incredibly diverse and other-worldly, making its flora and fauna just as varied. Living creatures of the great pit have evolved to adapt to such harsh conditions, even developing unique sensing organs to the force field within the Abyss.[1]

90% of species in the Abyss have not yet been identified. The further into the Abyss a Delver goes, the stranger and more dangerous the creatures become.[2] In order to gauge the aggression of the beasts within the Abyss, a "danger level" system was created as reference for Delvers in order for them to understand and evaluate the caution they must display whilst in the Abyss.[3]

It is frequently established that the deeper you find yourself in the Abyss the more likely you are to happen across creatures with higher and more substantial "danger level" scores.[4]

List of creatures by Danger Level[]

☆ Harmless

★ Insignificant

★★ Requires Caution

★★★ Serious

★★★★ Deadly

★★★★★ Absurd

★★★★★★ Extraordinary

★★★★★★★ Unprecedented


The Danger Level Unprecedented was originally created as a joke by Delvers, but the unexpected appearance of dangerous creatures exceeding even their wildest imaginations ended up making it an official classification.[3]



  1. Made in Abyss Manga: Made in Abyss Chapter 001, Page 31
  2. Made in Abyss Anime: Made in Abyss Episode 01
  3. 3.0 3.1 Made in Abyss Manga: Made in Abyss Chapter 032, Page 30
  4. Made in Abyss Manga: Made in Abyss Chapter 006, Page 1

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