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Siphonophoria

Short answer: Siphonophores (order Siphonophorae) are colonial hydrozoans made of specialized zooids that handle tasks like feeding, movement and reproduction while working together as one organism. The Portuguese man o' war is a well-known example, and some species reach great lengths.

They capture prey with stinging cells called nematocysts. The footage, credited to seaclips.io, shows a siphonophore on the seafloor.

VideoWrite-up1 sources
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What should you know about Siphonophoria?

Quick facts. Each one stands alone and has a stable ID you can cite.

  1. Colonies of zooids.

    DD-456-F01 · Write-up · Exhibit A (Structure)

  2. Feeding, movement, reproduction.

    DD-456-F02 · Write-up · Exhibit B (Tasks)

Video transcript: Siphonophoria: A Siphonophore Is a Colony of Specialized Zooids Acting as One

Siphonophores are [...] of specialized [zooids ...] tasks like feeding, [...] zooids work [...] highly efficient [...] man o' war [...] lengths of up [...] Siphonophores [...] or nematocysts, [...] NOW YOU KNOW!

Burned-in captions, read frame by frame (see transcript.md) · 28.7s Reel ·

Video coming soonSiphonophoria · Instagram Reel
Siphonophoria: A Siphonophore Is a Colony of Specialized Zooids Acting as One Instagram Reel · · 28.7s

The write-up

A siphonophore is a colony of specialized zooids acting as one. The Portuguese man o' war is one.

  1. Exhibit A

    Structure

    Colonies of zooids.

  2. Exhibit B

    Tasks

    Feeding, movement, reproduction.

  3. Exhibit C

    Example

    Portuguese man o' war.

  4. Exhibit D

    Stings

    Nematocysts.

  5. Exhibit E

    Group

    Hydrozoans.

Questions people ask about Siphonophoria

What are siphonophores made of?

Colony.

Source: Write-up · Exhibit A (Structure) · Wikipedia: Siphonophorae

Famous example?

Portuguese.

Source: Write-up · Exhibit B (Tasks) · Wikipedia: Siphonophorae

Stinging cells?

Cnidarian.

Source: Write-up · Exhibit C (Example) · Wikipedia: Siphonophorae

Do zooids specialize?

Division of labor.

Source: Write-up · Exhibit D (Stings) · Wikipedia: Siphonophorae

Group?

Cnidaria.

Source: Write-up · Exhibit E (Group) · Wikipedia: Siphonophorae

Test Your Knowledge

All quizzes →

5 questions, all from this case file. Answers are revealed instantly.

  1. What are siphonophores made of?

    1. Zooids
    2. Single cells
    3. Plants
    4. Bones
    Show the answer

    Answer: A. Zooids Colony. Source: Write-up · Exhibit A (Structure) · Wikipedia: Siphonophorae

  2. Famous example?

    1. Man o' war
    2. Octopus
    3. Sea star
    4. Clam
    Show the answer

    Answer: A. Man o' war Portuguese. Source: Write-up · Exhibit B (Tasks) · Wikipedia: Siphonophorae

  3. Stinging cells?

    1. Nematocysts
    2. Spines
    3. Teeth
    4. Barbs
    Show the answer

    Answer: A. Nematocysts Cnidarian. Source: Write-up · Exhibit C (Example) · Wikipedia: Siphonophorae

  4. Do zooids specialize?

    1. Yes
    2. No
    3. Only at night
    4. Only in winter
    Show the answer

    Answer: A. Yes Division of labor. Source: Write-up · Exhibit D (Stings) · Wikipedia: Siphonophorae

  5. Group?

    1. Hydrozoans
    2. Fish
    3. Mollusks
    4. Crustaceans
    Show the answer

    Answer: A. Hydrozoans Cnidaria. Source: Write-up · Exhibit E (Group) · Wikipedia: Siphonophorae

Cite this case file

Easterling, Marcus. "Siphonophoria." The Detail Department (DetailEnjoyer), case file DD-456, last updated Jan 12, 2025. https://detailenjoyer.com/case/siphonophoria/

Permalink: https://detailenjoyer.com/case/siphonophoria/ · Last updated

Markdown version

Cite a single fact by its ID, for example DD-456-F01 → https://detailenjoyer.com/case/siphonophoria/#DD-456-F01