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In 1811, while exploring the cliffs near Lyme Regis, England, 12-year-old Mary Anning made the find of a lifetime. There in the rocks was the skeleton of a strange creature. Mary's …
Before Tyrannosaurus rex, there was the mighty Allosaurus. This carnivorous dinosaur ruled the Jurassic Period with its razor-sharp teeth and deadly claws. Vibrant images, colorful …
You stare at the side of a rock wall near the ocean. Suddenly, you notice a spiral outline in the rock. You found an ammonite fossil You are filled with awe as you think about how …
The fierce and deadly sabertooth cat pounced on its prey during the Ice Age. Readers learn about this prehistoric predator from engaging, carefully leveled text and bold …
It's a battle between two fearsome, fanged beasts Today, the Siberian tiger holds the record as the world's biggest cat. But in prehistoric times, the saber-tooth cat held that …
How do we know about the plants and animals that lived millions of years ago? Fossils Every continent contains fossils that tell us about organisms that once existed on Earth. …
Albertosaurus' name may not sound very fearsome, but this was one deadly dino. Readers learn about this prehistoric predator from engaging text and bold illustrations reviewed by …
This book uncovers just how long it takes for the remains of a living thing to become a fossil. Learn fascinating facts about this process. Read this book to find out more about …
The American mastodon thundered through the Ice Age. With its powerful tusks and large size, few predators challenged this prehistoric beast. Readers learn about this mighty plant …
It's a fight between two fierce armored reptiles Today's crocodiles are powerful, sneaky hunters. But millions of years ago, the deinosuchus was one of the biggest predators of …