The Truth About the Blobfish
Discover why the 'world's ugliest animal' is actually a masterpiece of deep-sea engineering. Learn how it survives extreme pressure and why it looks so different when it comes to the surface.
Like Duolingo, but for The Truth About the Blobfish. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 26 levels across 3 sections, about 52 minutes end to end, roughly 10 days at five minutes a day. It moves through Seeing the Real Blobfish, Life in the Deep Dark, and The Science of the Squeeze. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in The Truth About the Blobfish
- Deep-sea pressure holds the blobfish's gelatinous flesh in a fish-like shape
- The iconic photo shows a specimen suffering from severe decompression damage
- The blobfish lacks a hard skeleton or strong muscles to support its weight in low pressure
- Public perception was shaped by a single image of a dead or dying fish rather than live observations
- The 'nose' is actually fluid-filled tissue that expands when pressure is removed
- Why the blobfish's appearance changes drastically at the surface
- Structural integrity in deep-sea fish is often dependent on external water pressure
- The impact of the famous 'Mr. Blobby' photograph on public perception
- The relationship between environment and physical structure
- Blobfish have a streamlined, 'normal' fish shape in the deep sea
- Blobfish bodies are made of soft, jelly-like tissue
- The iconic 'melted' look only happens when they are brought to the surface
- High external pressure acts as a structural support for their bodies
- How the blobfish's appearance changes based on its environment
- High pressure maintains a firm, fish-like shape
- Decreasing pressure causes the soft tissues to expand and lose shape
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives The Truth About the Blobfish the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Why does the most famous photo of a blobfish look so different from how the fish looks in the wild?
Get it right to open this lesson and 25 more in the app.
How to learn The Truth About the Blobfish, step by step
Go in order. 26 short levels across 3 sections, about 52 minutes in all, five minutes a day.
- 1
Seeing the Real Blobfish
- The Famous Grumpy Face
- What They Look Like Underwater
- The Magic of Jelly-Like Skin
- Why They Don't Have Bones
- 2
Life in the Deep Dark
- Surviving the Heavy Pressure
- The Lazy Way to Eat
- Finding Friends in the Dark
- Floating Without a Swim Bladder
- Protecting the Deep Sea Home
- How Scientists Study the Abyss
- 3
The Science of the Squeeze
- What Happens During Decompression
- Density and Buoyancy Basics
- Evolution of the Deep Sea Body
3 sections · 13 units · 26 levels. Built to play, not to enroll.
Questions about The Truth About the Blobfish
How do I learn The Truth About the Blobfish?
Go in order: start with Seeing the Real Blobfish, then Life in the Deep Dark, then The Science of the Squeeze. On Tomo that's 26 short levels, about 52 minutes in all, played five minutes a day. Start free and play the first level in under a minute.
Is there a Duolingo-style app for The Truth About the Blobfish?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. The Truth About the Blobfish is one of its free courses, and you can type any other topic to get a course of your own.
Is The Truth About the Blobfish free?
Yes. The Truth About the Blobfish is playable on Tomo's free plan, which doesn't expire. No credit card, no waitlist. Download the app and start your first lesson.
How long does it take to learn The Truth About the Blobfish?
26 levels across 3 sections, about 52 minutes of play in total. It's built for five minutes a day, so you finish it a little at a time instead of all at once.
Do I need any background to start The Truth About the Blobfish?
No. It's pitched at a beginner level, so it starts where you are and builds up. If you can tap a phone, you can start.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
The Truth About the Blobfish is taught in the Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start The Truth About the Blobfish today.
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