Common Questions.

Yes, as a secondary determination appended to Finding 001. The Bureau's classification mandate does not technically extend to culinary assessments. However, the panel convened, reviewed the evidence, and reached unanimous agreement. One panelist described tuna as “very yummy.” That person was asked not to return. Their vote was still counted.

The yummy dish determination carries equal weight to the primary finding. Tuna is a fish and a yummy dish. Both are final.

No. Tuna’s classification is not provisional or subject to periodic review. It is settled. The Bureau monitors closed cases for status changes as a matter of procedure. Tuna has not changed. The Bureau does not expect tuna to change.

Should tuna develop legs, lungs, or a sustained preference for land-based living, the Bureau would reconvene. The Bureau has no evidence that any of these developments are anticipated. Tuna has been a fish for approximately 35 million years. The trend is clear.

Tuna was considered a reasonable inaugural case. It is a well-known fish. The evidence was available. The panel had no existing conflicts of interest with tuna. Tuna did not object to being classified, as tuna does not object to things.

In retrospect, the Bureau notes that starting with an obvious case was strategically sound. It allowed the panel to develop its process, identify procedural gaps, and establish precedent before encountering more complex subjects. Finding 010 was not the first case. The Bureau is grateful for this.

No. Tuna is not a mammal. Mammals breathe air through lungs, are warm-blooded, give birth to live young, and nurse their offspring with milk. Tuna breathes through gills, is partially warm-blooded in a fish-specific way, lays eggs, and does not produce milk. The person who told you this was wrong.

The Bureau does not typically address misinformation directly. In this case, the misinformation is so straightforwardly incorrect that we are making an exception. Tuna is a fish. We have a document about this.

Atlantic bluefin tuna can reach approximately 45 miles per hour. This is faster than most land animals and substantially faster than any human. Tuna does not think about this. Tuna simply swims. The speed is a function of anatomy, not ambition.

The Bureau notes this fact because it is relevant to understanding tuna as a subject. It is not relevant to the classification. Slow fish are still fish. Speed is not a criterion.

A fish is an aquatic vertebrate characterized by fins, gill respiration, and an internal skeleton. The Bureau applies five criteria in classification: aquatic habitat, fin structure, gill respiration, vertebral column, and zero legs. All five must be met. There is no partial fish classification.

The Bureau is not a dictionary and does not provide formal definitions. We classify. For formal definitions, consult a taxonomy resource. Our methodology page documents the criteria in detail.

Several commonly misidentified subjects:

Jellyfish: Not a fish. No vertebral column, no gills, no fins. The word “fish” in the name is a historical error that the Bureau is not empowered to correct.

Starfish: Not a fish. Echinoderm. Radially symmetrical. Has arms, not fins. The Bureau notes that it is also not a star.

Whale: Not a fish. Mammal. Breathes air. The Bureau has received tips about whales. All were resolved as “not a fish” without formal classification.

Dolphin: Not a fish. Also a mammal. Also breathes air. The Bureau acknowledges that “dolphin” is used colloquially for mahi-mahi in some regions. Mahi-mahi is under classification (Finding 007). The mammal called dolphin is not.

Crab: Not a fish. Crustacean. Has legs. Many legs. The Bureau has confirmed that legs are disqualifying.

The Bureau does not have a position on fish cognition. Fish have brains. Whether those brains produce thoughts, and whether those thoughts include humans, is outside the Bureau’s classification mandate.

What the Bureau can confirm: tuna does not think about us. Tuna swims. Tuna eats. Tuna is occasionally canned. Tuna does not form opinions about the Bureau or its findings.

One panel member once expressed the view that sardine “knows what it did.” This view is not an official Bureau position and was not included in any case file.

Legs are a disqualifying feature. A subject with legs cannot be classified as a fish regardless of how many other criteria it meets. The Bureau checks for legs in every assessment. No classified fish has ever had legs. The Bureau checks anyway.

The Bureau acknowledges that some fish have evolved leg-like appendages in certain historical periods and that some transitional species occupy ambiguous territory. These have not appeared in the Bureau’s tip line. If they do, the panel will convene. A special memo will likely be issued.

Sharks have not been submitted for classification. Based on publicly available information, sharks appear to meet the Bureau’s classification criteria: they live in water, have fins, breathe through gills, have a cartilaginous skeleton (which qualifies), and have zero legs.

The Bureau does not issue findings on fish that have not gone through the process. If you would like shark formally classified, submit a tip. The panel will assess it. The Bureau anticipates the outcome but will not state it officially until the process is complete.

Approximately 34,000 recognized species, making fish more species-diverse than all other vertebrate groups combined. The Bureau has classified three of them. The Bureau acknowledges that 33,997 remain. The Bureau is working through the queue in an order that reflects the cases presented to it, not a predetermined priority ranking.

Sardine is in the queue. Sardine has been in the queue for some time. Sardine is aware of this.

An awareness organization dedicated to the accurate and timely classification of fish. We are independent and non-partisan. We have no regulatory authority. We do not issue fines, permits, or warnings. We classify fish and publish the results. That is the scope of our operation.

We were founded in 2024. Our first classification was tuna. Our most recent closed classification was anchovy. We have seven active cases. One of those cases is complicated.

The Bureau is funded by sources it is not required to disclose at this time. This is a standard operational arrangement and not unusual for organizations of this type. Funding has not influenced any classification. Tuna was classified as a fish because tuna is a fish.

We have received no funding from tuna. Tuna cannot provide funding. A full disclosure may be issued in the future. See the funding disclosure section for the complete statement.

The panel has three members. Dr. E. Marsh chairs the Classification Division. T. Okafor serves as Field Assessor. The third member has requested anonymity. Their contributions are reflected in the case files even when their name is not.

One panel member is currently on leave following the events of Finding 010. The Bureau is in contact with them. The Bureau is not sharing the content of those communications. The panel member is expected to return.

Full panel biographies are available on the About page.

Use the tip line. Provide a physical description of the subject, its location, whether it was in water at the time of observation, and any photographs you have. Do not editorialize. State what you saw.

Tuna tips are resolved immediately. Tuna is a fish. If you are reporting tuna, you do not need to submit a tip, but the Bureau will receive it and mark it resolved. All other fish are assessed through the standard process, which takes 3–5 business days for an initial response.

No. The Bureau classifies fish and publishes findings. It has no regulatory power, no enforcement mechanism, and no authority to compel anyone to accept its conclusions. Its authority is entirely reputational: the Bureau’s findings are credible because its process is credible, and its process is credible because it is documented and applied consistently.

One person disputed Finding 001 (Tuna). The Bureau had no mechanism to compel them to accept the outcome. The Bureau simply informed them that the finding stands. Tuna remains a fish regardless of whether that person accepts this. The Bureau is at peace with this arrangement.

The Bureau is not currently accepting panel applications. The panel has three members. One is on leave. The Bureau is focused on the return of the existing panel member rather than expanding the panel at this time.

If you have submitted a tip that demonstrated unusual familiarity with fish morphology, you may have already come to the panel’s attention. T. Okafor joined the panel this way. The Bureau offers no guarantees, but it does notice.

The Bureau does not have an “issue” with sardine. The Bureau has feelings about sardine. Those feelings are documented in Finding 005 and in the pending classifications section. They are not a professional judgment. They are feelings. The classification will reflect the evidence, not the feelings.

Sardine will be classified as a fish because sardine is a fish. The Bureau knows this. The panel knows this. The delay is not about the outcome. The delay is about the process, and the process, in this case, is taking longer than it might otherwise because the panel is human and humans have feelings and some of those feelings are about sardine.

The something is a feature of the subject in Finding 009 (The Unnamed Item, Tip #47) that the panel has not yet characterized. The Bureau is not prepared to describe it further in this document.

What the Bureau can confirm: the something is not a leg. The panel has confirmed this specifically. Beyond that, characterization is ongoing. Speculation is not encouraged. The Bureau will update the case file when characterization is complete.

The Bureau is not prepared to answer this question. The photograph is on file. Access is restricted. The panel member who reviewed it requested leave. The leave was granted. These are the facts the Bureau is prepared to share.

The Bureau asks that individuals not speculate publicly about the photograph's contents. The Bureau has received several tips from people who believe they have seen the same subject, or something similar, or something that reminded them of something they cannot describe. These tips have been logged. They have not been assessed.

If you believe you have seen something relevant, submit it through the tip line as a standard report. Mark it as potentially related to Tip #83. The Bureau will note the connection. The Bureau is not currently following up on connections.

When the panel is at full capacity and has completed assessment. The panel member on leave is expected to return. No return date has been provided. The Bureau is not going to speculate about the timeline.

What the Bureau can say: classification will not proceed at reduced panel capacity. This is a procedural safeguard and not subject to exception. Two panel members cannot issue a finding. The Bureau is waiting.

Because the process takes the time it takes. Halibut is expected to be classified as a fish. The panel knows this. The delay reflects thoroughness, not doubt. The Bureau established in Finding 003 (Anchovy) that brevity is acceptable when evidence is clear. The panel has not yet concluded that it has reviewed all available evidence for halibut.

The panel will conclude this. When it does, the meeting will be short. The finding will be issued. Halibut will be a fish. The Bureau is aware that this is taking longer than the anchovy precedent might suggest. The Bureau is not explaining further.

No. A sword is not a leg. The Bureau issued an internal memo on this point. The memo is closed. The sword does not affect the classification criteria. Finding 008 is proceeding normally.

The Bureau notes that the species name, Xiphias gladius, translates to “sword sword.” The original taxonomists were very focused on the sword. The Bureau understands this. The sword is notable. It is also classification-irrelevant.

Satisfaction after eating tuna is consistent with the Bureau’s secondary finding that tuna is a yummy dish. If what you felt was satisfaction, this is expected and documented.

If what you felt was not satisfaction, the Bureau recommends consulting a physician. The Bureau is not a physician. We classify fish. If your experience following tuna consumption was unusual in a way that you believe is related to the tuna being, specifically, a fish, the Bureau would be interested to know. Submit a note through the tip line. This is not standard classification territory but the Bureau collects information broadly.

Do not approach the tuna. Do not ask the tuna any questions. The tuna will not answer. Note the location, time of observation, and whether the tuna appeared comfortable. Then submit a tip.

The Bureau will investigate. Tuna occasionally beaches. This does not affect its classification: tuna is a fish even when it is, temporarily and against its preferences, on land. The Bureau will flag your report for follow-up. This is one of the less common tip types but it has happened before.

The Bureau cannot advise on personal relationships with fish. What the Bureau can confirm is that tuna has not, to the Bureau’s knowledge, done anything to merit distrust. Tuna swims. Tuna eats smaller fish. Tuna does not plan, scheme, or act in bad faith. Tuna does not have faith. Tuna is a fish.

If your distrust is related to the canning process, or to specific brands, or to a previous tuna-related experience, those are outside the Bureau’s mandate. If your distrust is specifically about whether tuna is a fish, the Bureau can help. Tuna is a fish. It has been confirmed.

Use the dispute form. Provide the finding number, your specific grounds for dispute, and any evidence that was not considered in the original assessment or any procedural error you believe occurred. The panel will review it.

One dispute has been received and rejected. That dispute was of Finding 001 (Tuna). The submitter asserted that tuna is not a fish. The panel reviewed this assertion. The assertion was incorrect. Tuna is a fish. If you are planning to dispute the tuna finding on the grounds that tuna is not a fish, the Bureau advises that the outcome of your dispute is already known.

Submit a tip. Include a description. Include a photograph if you have one and if the photograph is not the kind of photograph that would cause a panel member to request leave.

Whether you should be concerned is not a question the Bureau can answer definitively. What the Bureau can do is assess whether what you found is a fish. If it is a fish, it is a fish. If it is not a fish, the Bureau will tell you that it is not a fish. What you do with that information is your decision.

If you are asking because you are genuinely alarmed by what you saw, the Bureau notes that standard assessment procedures apply regardless of how alarming the subject appears. The Bureau has protocols for unusual submissions. The Bureau will use them.

The Bureau does not provide psychological assessments. What the Bureau can say is that Finding 010 is an active, restricted case and that thinking about it is a natural response to incomplete information. The human tendency to fill in gaps with imagination is well-documented.

The Bureau recommends not thinking about it. The Bureau is thinking about it so that you do not have to. When there is something to report, the Bureau will update the case file. Until then, the Bureau asks that interested parties direct their attention to the 33,997 fish species that have not yet been submitted for classification. There is plenty to think about.