By Bersarker Part of the Avengers: The Earth's Mightiest Heroes continuity.

Acanthodian are a race of fish that lived in the era of Kaiju.


In era of Kaiju, the Acanthodians swim throughout the ocean to searching for Materpiscis to eat. They're primary food of the adult Dunkleosteus and the children of the Ocean Giganto. When the mass extinction is happened, most of them are died. Some survivors are now lived in the Subterranea.


They're the great killer fishes. They are dare enough to attack and kills one of the Ocean Giganto's children. They have two fins that strong like arms of humans that they use to drag themselves out from the water.


When the breeding season has arrive, they will gather up as pack to go into the river of the Southwestern Forest to breeding. They will laid their eggs in the swamp and let them grow in the swamp until they're ready to live in the ocean.


  • They can kill one young of Ocean Giganto.
  • One adult Acanthodian is big as same as human is.

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