The Purpose of Tails
Like Duolingo, but for The Purpose of Tails. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
21 levels across 4 sections, about 42 minutes end to end, roughly 8 days at five minutes a day. It moves through Movement and Mechanics, Communication and Social Dynamics, Survival and Adaptation, and The Evolutionary Why. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android
Key ideas in The Purpose of Tails
- Swinging the tail in the opposite direction of the turn shifts the center of gravity
- Arboreal tails provide fine-tuned stability on narrow, unstable surfaces
- The tail acts as a dynamic counterweight to counteract centrifugal force
- Tail length and grip-ability vary based on the specific diameter of the animal's 'pathway'
- How a cheetah uses its tail to maintain speed during a sharp turn
- Matching tail morphology to specific environmental stability needs
- The tripod effect creates a stable base by distributing weight across three points
- The cat rotates its tail rapidly in one direction to initiate body rotation
- A kangaroo's tail is muscular enough to support its entire rear-end weight during rest
- Momentum transfer allows the upper and lower body to twist independently in mid-air
- The function of the kangaroo tail as a structural support
- The sequence of momentum transfer during a mid-air righting reflex
- Heavier tails require more metabolic energy to grow and carry daily
- Long tails can be a liability by increasing visibility to predators or snagging on brush
- The evolutionary costs of maintaining a large, heavy tail
- Horizontal flukes create vertical thrust when moved up and down
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 Purpose of Tails 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.
What is the primary benefit of an arboreal tail for a creature living high in the canopy?
Get it right to open this lesson and 20 more in the app.
Where The Purpose of Tails takes you
Explore the diverse evolutionary functions of the mammalian tail, from high-speed rudders and social signaling to biological scarves and energy storage.
- 1
Movement and Mechanics
- The Fifth Limb: Balance and Counterweight
- Propulsion and Steering
- 2
Communication and Social Dynamics
- The Language of the Tail
- Defense and Deterrence
- 3
Survival and Adaptation
- Thermal Regulation and Energy
- Prehensile Tails and Specialized Grips
- 4
The Evolutionary Why
- Tail Loss and Vestigial Remnants
4 sections · 7 units · 21 levels. Built to play, not to enroll.
You pick the voice
The Purpose of Tails is taught in the The Professor style: clear, structured, thorough. 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 Purpose of Tails today.
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