The Complete Guide to All Known Ancient Zoan Devil Fruits

All Ancient Zoan Devil Fruit users from One Piece standing together during the Onigashima battle

In the world of One Piece, created by Eiichiro Oda, the power system revolves around mysterious fruits known as Devil Fruits. These fruits grant incredible anime powers and manga powers, but at the cost of losing the ability to swim. Among the 3 main Devil Fruit types — Paramecia, Logia, and Zoan — the Zoan category stands out for its ability to grant transformation into animals.

Within the Zoan class, there are three major subtypes: Ancient Zoan, Mythical Zoan, and Artificial Zoan. Among them, Ancient Zoan fruits are considered rare Devil Fruits that allow users to transform into prehistoric animals like dinosaurs, making them some of the most powerful Devil Fruits in the series.

Unlike regular Zoans, these fruits grant access to enhanced strength, durability, endurance, stamina, and even faster recovery and regeneration. Their prehistoric traits—such as thick hide, scales, tusks, and horns—make them ideal for combat.


Understanding Zoan Transformations

All Zoan transformation users typically have access to 3 Zoan forms:

  • Human Form – their natural state
  • Beast Form – full animal transformation
  • Human-Beast Form (also called Hybrid Form) – a mix of human and animal traits

Each form has its advantages. The full beast transformation provides raw physical power, while the hybrid transformation offers balance between speed, agility, and combat ability.


The reason why Ancient Zoan users dominate fights, especially in arcs like the Wano Country Arc, is simple:

  • Massive durability and resilience
  • Extreme toughness and stamina
  • Powerful bite force, claws, and fangs
  • Unique abilities like flight, shockwaves, and poison

These traits allow them to stand toe-to-toe with a Yonko Commander, and sometimes even challenge a Yonko like Kaido or Big Mom.


Almost all known nine Ancient Zoans are linked to the Beast Pirates, also called the Animal Kingdom Pirates, led by Kaido. This crew was designed to be a Zoan army, including:

  • The All-Stars (King, Queen, Jack)
  • The Tobi Roppo (also known as the Flying Six)

Their dominance was especially visible during the Onigashima Raid, where they fought against the Straw Hat Pirates, the Mink Tribe, and even agents from CP0, Marines, and SWORD.


Now let’s break down every known fruit and its user.


Ryu Ryu no Mi (Dragon-Dragon Fruit Series)

Queen using Ancient Zoan Brachiosaurus powers with cybernetic laser attacks in One Piece

The Ryu Ryu no Mi, also called the Dragon-Dragon Fruit, is the most common Ancient Zoan series.

Model: Brachiosaurus – Queen

Queen hybrid Brachiosaurus transformation fighting Sanji in One Piece Wano Arc

Queen uses the Model Brachiosaurus, transforming into a massive Brachiosaurus. His abilities include:

  • Incredible strength and durability
  • Long neck for extended combat ability
  • Advanced cybernetic enhancements, including lasers

He even survived attacks from Big Mom and fought Sanji, including Raid Suit Sanji, proving insane toughness.


Model: Pteranodon – King

King Pteranodon hybrid form battling Zoro with flaming wings in One Piece

King, a Lunarian, uses Model Pteranodon, giving him:

  • High-speed flight
  • Devastating aerial attacks
  • Natural flame resistance due to Lunarian powers

He clashed with Roronoa Zoro, forcing him to use Enma sword and advanced Haki.


Model: Allosaurus – X-Drake

X Drake Ancient Zoan Allosaurus hybrid form using powerful bite attacks

X-Drake, secretly working with SWORD, uses Model Allosaurus:

  • Strong jaw strength
  • Effective close combat
  • Ability to damage a Pacifista

He also fought members of the Worst Generation, including Scratchmen Apoo.


Model: Spinosaurus – Page One

Page One Spinosaurus hybrid form fighting Raid Suit Sanji in One Piece

Page One uses Model Spinosaurus, gaining:

  • High durability
  • Sharp claws and fangs
  • Ability to tank Gear 3 attacks from Monkey D. Luffy

He also fought Sanji using the Raid Suit.


Model: Triceratops – Sasaki

Sasaki Triceratops transformation attacking General Franky with spinning frill

Sasaki uses Model Triceratops, known for:

  • Rotating frill for flight
  • Massive horns for piercing damage
  • Extreme resilience

He fought Franky, including General Franky, and endured attacks involving Wapometal.


Model: Pachycephalosaurus – Ulti

Ulti Pachycephalosaurus hybrid form using devastating headbutt attack in One Piece

Ulti uses Model Pachycephalosaurus:

  • Thick skull for devastating headbutt
  • High endurance
  • Ability to pressure Monkey D. Luffy into considering Gear 4

She survived hits from Big Mom and still kept fighting.


Zou Zou no Mi (Elephant Elephant Fruit)

Model: Mammoth – Jack

Jack Mammoth Ancient Zoan form battling the Mink Tribe during the Sulong transformation

Jack uses the Zou Zou no Mi, also called Elephant Elephant Fruit, Model Mammoth:

  • Immense stamina
  • Powerful tusks
  • Ability to destroy entire regions like the Zou elephant

He fought the Mink Tribe, including their Sulong form, showing unmatched endurance.


Neko Neko no Mi (Cat Cat Fruit)

Model: Saber Tiger / Saber-Toothed Tiger – Who’s Who

Whos Who Saber Toothed Tiger hybrid form fighting Jinbe with Rokushiki techniques

Who’s Who uses the Neko Neko no Mi, also known as Cat Cat Fruit:

  • Transforms into a Smilodon or Saber-toothed tiger
  • Uses Rokushiki techniques
  • Combines Haki with piercing damage

He fought Jinbe and showcased incredible combat ability.


Kumo Kumo no Mi (Spider Spider Fruit)

Black Maria giant spider hybrid form trapping Sanji with sticky webs in One Piece

Model: Rosamygale Grauvogeli – Black Maria

Black Maria uses the Kumo Kumo no Mi, also called Spider Spider Fruit, Model Rosamygale Grauvogeli:

  • Becomes an ancient spider
  • Uses webs, sticky webs, and traps
  • Applies poison to weaken enemies

She captured Sanji and later fought Robin and Brook.


Some Ancient Zoans show bizarre abilities:

  • Queen can detach his body like a snake due to cybernetic enhancements
  • Sasaki uses spinning horns for flight
  • King launches powerful beak attacks like shockwaves

These abilities reflect unusual prehistoric traits.


While Ancient Zoan fruits focus on raw physical power, Mythical Zoan fruits offer supernatural abilities.

For example:

  • Marco has healing flames
  • Kaido can control elements

Still, Ancient Zoans remain the strongest Zoan type in terms of durability and combat ability.


During the Punk Hazard Arc, Dr. Vegapunk attempted to recreate Devil Fruits. Later, Caesar Clown and Donquixote Doflamingo mass-produced Artificial Devil Fruits known as SMILE fruits using SAD substance.

However:

  • Only 10% SMILE success rate
  • 90% failure rate
  • Failed users lose emotional expression

Momonosuke consumed an artificial fruit but gained a powerful dragon form.


Even with strong fruits, users rely on Haki, including:

  • Armament Haki
  • Observation Haki (Kenbunshoku Haki)
  • Busoshoku Haki

These abilities enhance claws, fangs, and overall combat ability, allowing them to fight elite opponents.


As the story progresses, the role of Ancient Zoans may evolve. With the involvement of the World Government, Marines, CP9, and CP0, these fruits remain crucial in large-scale battles.

The influence of groups like the Red Hair Pirates and Straw Hat Pirates ensures that Ancient Zoans will continue to shape the future of One Piece.


Final Thoughts

The Ancient Zoan Devil Fruits represent the perfect mix of brute force and ancient evolution. Whether it’s the crushing bite force of a Spinosaurus, the unstoppable charge of a Triceratops, or the terrifying webs of an ancient spider, these abilities stand among the most exciting in the series.

From Queen to Who’s Who, each user brings unique strengths to the battlefield. As Eiichiro Oda continues to expand the story, fans can only hope to see more rare abilities, deeper Zoan awakening, and new prehistoric powers.

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