Dinosaurs: Rulers of the Earth
Like Duolingo, but for Dinosaurs: Rulers of the Earth. 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.
Free during early access · No credit card · iPhone & Android

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 turns Dinosaurs: Rulers of the Earth into a game you actually finish. Levels, streaks, and quick quizzes that make it stick. Five minutes a day.
Where Dinosaurs: Rulers of the Earth takes you
Travel back millions of years to meet the most incredible creatures to ever walk the planet. Learn how they lived, what they ate, and why they eventually disappeared.
- 1
Meet the Dinosaurs
- What Makes a Dinosaur?
- The World Before Dinosaurs
- Big, Small, and Everything In Between
- The Three Eras of Dinosaurs
- 2
How They Lived
- Meat Eaters and Plant Eaters
- Armor, Horns, and Spikes
- Family Life and Nesting
- How Dinosaurs Moved
- The Truth About Feathers
- Communication and Sound
- 3
Famous Giants
- T-Rex: The King of Lizards
- Long-Necked Giants
- The Three-Horned Triceratops
- 4
The End and Beyond
- The Great Extinction
- Finding Fossils Today
- Dinosaurs in Our Backyard: Birds
- Working as a Paleontologist
- Common Dinosaur Myths
4 sections · 18 units · 54 levels. Built to play, not to enroll.
Here's what playing it feels like
A real question from this course. Take your best guess.
Because of their unique hip structure, how did a dinosaur's legs differ from those of a sprawling lizard?
Get it right to open this lesson and 53 more in the app.
You pick the voice
Dinosaurs: Rulers of the Earth is taught in the The Comedian style: learning with the laughs left in. 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 Dinosaurs: Rulers of the Earth today.
Download Tomo, search Dinosaurs: Rulers of the Earth, and play your first lesson in under a minute.