Offers a look at how the impact of a giant asteroid changed the planet and may have caused the extinction of the massive beasts who ruled the planet for millions of years.

"Engaging images accompany information about the megalodon. The combination of high-interest subject matter and light text is intended for students in grades 2 through 7"--

Based on specimens in the collections of the American Museum of Natural History, introduces sixteen of the prehistoric world's lesser-known animals, including the saber-toothed cat, the glyptodont, and the plesiosaur.

"Dino" Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children's books, writes a popular dinosaur column in Highlights magazine, and was an adviser for Jurassic Park. Take a trip through dinosaur time to meet these sea giants face-to-face: The Archelon was similar to a turtle, but its shell was...

You haven't changed a bit! Living fossils, or modern-day animals that very closely resemble their ancient relatives. Meet the coelacanth, horseshoe crab, dragonfly, tuatara, nautilus, and Hula painted frog. All are living fossils. Why have they changed so little over time, while other animals evolved or went extinct? Using contrasting "then" and "now" illustrations, veteran nonfiction writer Caroline Arnold alternates between a prehistoric creature...

Describes the prehistoric world of the woolly mammoth, how they were able to survive the Ice Age, and how Stone Age humans hunted them for food, tools, and shelter.

"Great White Sharks are gigantic - but what else used to swim in the oceans that might be bigger? Readers will discover fascinating creatures and compare their incredible sizes to modern day settings."--

The Early Cretaceous brings readers closer to prehistoric life than ever before. What would it be like to see a living, breathing dinosaur? By combining the latest paleontological findings with highly detailed, intimate drawings of wildlife from the Early Cretaceous, readers will look into the eyes of some of the most fascinating creatures to ever inhabit the earth. Written and illustrated in the style of a naturalist's notebook, the viewer will be...

"Sea creature fossils are particularly interesting because they're often found where there isn't any water. They give scientists insight into how Earth has changed over time and millions of years. Readers uncover some of the oldest sea creature fossils and find out how they formed, where they were found, and what they can tell us about the past, including where water once was and isn't anymore. Detailed photographs of these fossils correlate closely...