Take a fun, fact-filled trip back to Earth as it was 430 million years ago. Then, watch as continents drift and oceans take shape. Watch out (!) as fish get toothier, plants stretch skywards and bugs get bigger. Soon fish get feet and four-legged creatures stalk the planet. Here’s the story of Earth in conversational text, informative illustrations, and humorous cartoons. Complete with time line, pronunciation guide, glossary and index.

In the style of WHEN BUGS WERE BIG and WHEN FISH GOT FEET this book discusses all the exciting developments of the Triassic Age, from the recovery of the planet from the most deadly mass extinction ever, to the first appearance of the dinosaurs. We also get to meet the first mammals, the first pterosaurs (flying reptiles), the first frogs, a host of predatory marine reptiles, early turtles, and the first coral reefs. With the books' signature blend of humor and clearly presented information, cartoon illustrations help keep the fact-filled material extra fun. National Geographic supports K-12 educators with ELA Common Core Resources. Visit www.natgeoed.org/commoncore for more information.

Previously published as three volumes-- When fish got feet, sharks got teeth, and bugs began to swarm; When bugs were big, plants were strange, and tetrapods stalked the earth; and When dinos dawned, mammals got munched, and pterosaurs took flight.

Takes a tour of the Earth three hundred and twenty million years ago, during the Paleozoic Era, and investigates the plants and animals found there.

Sure you know T-Rex was the meat-eating king and brontosaurus munched on leaves, but what else was on the dino dining menu during the Mesozoic era? Meet the 'vores: carnivores, piscivores, herbivores, insectivores, "trashivores," "sunivores," and omnivores like us. Readers will be surprised and inspired to learn about dino diets and they'll get to explore how scientists can tell which dinosaurs ate what just from looking at fossils! Journey through artist and author Hannah Bonner's whimsical world to learn how the dinosaurs and their contemporaries bit, chewed, and soaked up their food.

Illustrations and nimble prose bring these ancient creepy-crawlies-and their tamer relatives- to life with scientific detail.

With a unique book cover that looks and feels like actual shark skin, DISCOVERING SHARKS is the ultimate guide to the fiercest, most fascinating predators that lurk the ocean deep! This action-packed, full-color book features dozens of different types of sharks, with captivating photographs and illustrations throughout. From the Great White to the Hammerhead, learn about those razor-sharp teeth and prominent fins, mysterious behavior patterns, and even their unique diets. DISCOVERING SHARKS is jam-packed with gripping facts and fun tidbits, as well as breath-taking images that nearly jump off the page and right into your lap! Featuring a one-of-a-kind textured book cover that feels like shark skin, this book is a must-have for any child fascinated by the fiercest creatures who lurk the ocean deep!