Iguanodon Facts — The Thumb-Spike Dinosaur Nature Picture Book
What makes Iguanodon so amazing?
Iguanodon, with a pointy spike on its thumb, was one of the very first dinosaurs ever discovered. It was a plant-eating dinosaur that could walk on both two legs and four.
Nature and science facts about Iguanodon
Iguanodon lived in Europe during the Early Cretaceous, about 125 million years ago, and grew up to 9–11m long. Its most famous feature, the pointy thumb spike, was first mistaken for a nose horn before scientists later realized it was actually the tip of the thumb. Iguanodon traveled in herds and used both two legs and four. It probably used its thumb spike to fend off predators or handle food.
What Tangobook's «Iguanodon» covers
Tangobook's «Iguanodon» warmly shows this friendly plant-eater—its thumb spike, its two-legged and four-legged walking, and how it traveled together in herds.
Points worth exploring together
Point out details like the thumb spike (first mistaken for a nose horn), walking on two and four legs, traveling in herds, and the European fossils. Chatting about "Isn't it amazing that it had a spike on its thumb?" makes it even more fun.
Parent guide — how to spark curiosity
Hold up your thumb and pretend, "There was a spike right here!" Sharing the discovery story—"At first they thought it was a nose horn"—helps your child learn in a fun way how science changes over time.
Frequently Asked Questions (FAQ)
Q. What did Iguanodon use its thumb spike for?
A. It probably used it to fend off predators or handle food. At first it was mistaken for a nose horn.
Q. Did it walk on two legs or four?
A. It used both two legs and four. It also traveled in herds.
Q. How can we enjoy it at home?
A. Try pretending your thumb has a spike, and share the discovery story of how it was "first thought to be a nose horn."
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Curious about "Iguanodon"?
Meet it for yourself on Tangobook, with beautiful illustrations and Korean and English narration.
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