20 Things You Didn't Know About Fish-Men In 'One Piece'

The world of One Piece contains a wide range of sentient, non-human species. One of the first to be introduced are fish-men, mammalian beings with both human and fishlike features. First introduced as the villains who took over Nami's village, they soon prove to be a far more complex group that includes both villains and heroes. For this list, we're bringing you some things you didn't know about fish-men in One Piece.

Here's a meta detail. Oda actually wanted to introduce the fish-men as early as the third chapter but was denied by his editor. There's also some weird information about Hody Jones' package that you may or may not want to know about. Is that too off-putting? Here's another detail - did you know that Kuroobi's name is tied to his profiency in Fish-men Martial Arts? 


  • 1
    134 VOTES

    Arlong Is The Only Known Person To Be Released From Impel Down

    Once you're sent to Impel Down Prison, you're unlikely to get out unless you find a way to break out. In fact, only one person has been officially released from prison, and that's Arlong. This happened after his childhood friend Jinbe was named one of the Seven Warlords of the Sea.

    134 votes
  • 2
    138 VOTES

    Fish-men Can Breed With Other Species

    Fish-men are much closer to being human than they are to being fish. Rather than laying eggs, they get pregnant and give birth the way humans do. They can also breed with humans, mermaids, giants, and other species with a similar enough genetic background. When this happens, the offspring can either be fully fish-man, fully something else, or a hybrid of the two species. 

    138 votes
  • 3
    67 VOTES

    Tom Doesn't Produce Poison

    Tom is a fish-man who resembles a Longhorn cowfish. In real life, these fish secrete toxins from their skin when they're stressed out or in danger. While this would probably prove effective in battle, Oda has confirmed that Tom himself is not poisonous. 

    67 votes
  • 4
    69 VOTES

    What Is Hody Jones Packing?

    If you're familiar with Oda's playful attitude in the SBS column, you can probably guess how he responded when a fan asked whether Hody Jones had double the manhood because he was a shark. 

    "THEY HAVE 2 OF THEM!? (SHOCK) Sharks have 2 of them!? Wow, I had no idea. They're widely known for it!? I've drawn lots of sharks in my lifetime, but I had no idea. Thank you so much. If so, Hody has 2 of them as well.

    He has 2 d*cks, so he must be a double d*ck!

    I guess personally, I only need one."

    69 votes
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    68 VOTES

    Hatchan Was Going To Be Female

    Hatchan Was Going To Be Female
    Photo: Eiichiro Oda

    When Oda was first designing Hatchan, he had something totally different in mind - a squid fish-woman named Maple Read. 

    68 votes
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    64 VOTES

    What Is The Difference Between Mermaids & Fish-men?

    What Is The Difference Between Mermaids & Fish-men?
    Photo: Eiichiro Oda

    Mermaids and fish-men are often mistaken for one another. If you're not sure which is which, don't worry, Oda has an explanation.

    "As you can see here, the ones with the bottom half of fish are "mermaids". The ones with fish-like upper halves are "Fish-Men". To illustrate the difference with an octopus, look to the right. As for the difference in their natures, mermaids generally try to be friends with other fish, while the Fish-Men try to rule the fish. That's the gist of it. Of course, their habitats are different too, but you'll see for yourself later on in the story eventually."

    64 votes