Is Mareanie a real animal?

No. Mareanie is a fictional Pokémon. Its closest real counterpart is the Crown-of-thorns Starfish (Acanthaster planci), which AnimalDex covers with real field-guide facts.

Which other Pokémon are based on the Crown-of-thorns Starfish?

AnimalDex also pairs Toxapex with the Crown-of-thorns Starfish.

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#0747 · Generation VII

What Animal Is Mareanie Based On?

Mareanie most closely resembles the Crown-of-thorns Starfish.

Closest animal

Crown-of-thorns Starfish

Confidence

Reasonable animal match

How Mareanie compares to the real Crown-of-thorns Starfish

Mareanie's official category is the Brutal Star Pokémon. AnimalDex rates its resemblance to the Crown-of-thorns Starfish as a reasonable match, meaning the animal is clear but the design mixes in other traits. Mareanie is a spiky, venomous starfish-like Pokemon that preys on coral, matching the crown-of-thorns starfish. Its spikes are venomous like the real crown-of-thorns, which is one of the reefs' most notorious coral predators.

The comparison covers looks and behavior cues, not biology: Mareanie is a fictional Pokémon, while the Crown-of-thorns Starfish (Acanthaster planci) is a real marine invertebrate. On AnimalDex the real Crown-of-thorns Starfish scores 32 for dominance, 4 for speed, 18 for size and 4 for intelligence, out of 100, so its strongest trait is dominance.

Official category: Brutal Star Pokemon. This page is an AnimalDex comparison for real-animal resemblance, not an official design-origin claim.

Meet the real Crown-of-thorns Starfish

Acanthaster planci

Crown-of-thorns Starfish feed directly on coral tissue and can damage reefs during population outbreaks. Their many arms, tube feet, stomach-feeding method, and painful spines make them powerful reef pressure points.

How to recognize it

Many arms, usually 13 to 20
Body commonly 25 to 35 centimetres across
Upper surface covered in long, sharp spines

Real Crown-of-thorns Starfish facts

It is among the largest starfish found on coral reefs.
It is thought to find coral and other crown-of-thorns starfish partly by chemical cues carried in the water.

Diet: Live hard coral, with a preference for fast-growing branching and table corals such as Acropora. Each meal leaves a patch of bare white skeleton. When coral is scarce it will eat other reef organisms.
Lifespan: Thought to live up to about 8 years in the wild.
Predators and threats: The giant triton snail, humphead wrasse, titan triggerfish, starry pufferfish and harlequin shrimp all eat it, often only in part. It hides under coral by day and can regrow lost arms.

AnimalDex stats for the Crown-of-thorns Starfish, out of 100
Dominance	Speed	Size	Intelligence
32/100	4/100	18/100	4/100

Crown-of-thorns Starfish field guide What the Crown-of-thorns Starfish teaches

Mareanie animal FAQ

What animal is Mareanie based on?: Mareanie most closely resembles the Crown-of-thorns Starfish. Mareanie is a spiky, venomous starfish-like Pokemon that preys on coral, matching the crown-of-thorns starfish. Its spikes are venomous like the real crown-of-thorns, which is one of the reefs' most notorious coral predators.
Is Mareanie a real animal?: No. Mareanie is a fictional Pokémon. Its closest real counterpart is the Crown-of-thorns Starfish (Acanthaster planci), which AnimalDex covers with real field-guide facts.
What is the real Crown-of-thorns Starfish like?: Crown-of-thorns Starfish feed directly on coral tissue and can damage reefs during population outbreaks. Their many arms, tube feet, stomach-feeding method, and painful spines make them powerful reef pressure points.
Which other Pokémon are based on the Crown-of-thorns Starfish?: AnimalDex also pairs Toxapex with the Crown-of-thorns Starfish.

More Crown-of-thorns Starfish comparisons in Generation VII

No.	Pokemon	Closest animal	Basis
#0748	Toxapex	Crown-of-thorns Starfish	medium