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Some 75 million years ago, one dinosaur ended its life. The dinosaur was an Albertosaurus -- distant cousin to the… ferocious, meat-eating predator Tyrannosaurus Rex. But its death was also a beginning -- the start of its transformation into a fossil, which lay undiscovered for millennia until the forces of erosion brought the young dinosaur, once again, to light. Grades 4-7. 1999.
Repérer un terrain fossilifère ? Distinguer du premier coup d'œil un théropode d'un marginocéphale ? Facile... Os, œufs, becs, cornes… et petits bobos, vous n'ignorerez presque plus rien des mastodontes de l'ère secondaire. Pour les lecteurs d’école secondaire. 1997.
Describes paleontologists' discovery of dinosaur fossils at major sites in Mongolia, Canada, and Argentina. Presents information on the Oviraptor, Centrosaurus,… and Herrerasaurus, among others. Discusses scientific evidence linking birds and carnivorous dinosaurs. Grades 4-7. 1998.
Discusses the theory that birds are modern evolutionary descendants of dinosaurs, comparing their skeletons and bone structure. Describes the 1996… discovery in China of theropod fossils showing feathers. Explains the functions of various feathers and possible evolution of arms to wings. For grades 4-7. 2000.
From a master LEGO builder comes seventeen easy-to-build dinosaur projects using nothing but LEGO bricks!What's better than dinosaurs or building… with LEGO bricks? Building amazing dinosaur projects out of your LEGO bricks, of course! Brick by Brick Dinosaurs provides more than fifteen amazing projects to build with your LEGO bricks. Follow the easy step-by-step instructions to create favorites like the triceratops, stegosaurus, and brachiosaurus, as well as the super cool sarcosuchus, archaeopteryx, pteranodon, and more. Scattered throughout are fun and fascinating facts about dinosaurs and prehistoric times. This is a must-have book for anyone who loves dinosaurs or LEGO.
We know dogs are our best animal friends, but have you ever thought about what that might mean? Fossils show… we’ve shared our work and homes with dogs for tens of thousands of years. Now there’s growing evidence that we influenced dogs’ evolution—and they, in turn, changed ours. Even more than our closest relatives, the apes, dogs are the species with whom we communicate best. Combining history, paleontology, biology, and cutting-edge medical science, Kay Frydenborg paints a picture of how two different species became deeply entwined—and how we coevolved into the species we are today.
Travel back to the time when the mighty dinosaurs ruled the earth.The Age of Dinosaurs began about 250 million years… ago. In the beginning they were quite small but over time they evolved into the varied and fascinating creatures that captivate our imaginations today. What we know about dinosaurs is evolving, too! We've learned that some dinosaurs were good parents, that dinosaurs could grow new teeth when old ones fell out, and that most dinosaurs walked on two legs. We've even discovered that birds are modern relatives of dinosaurs!From the Trade Paperback edition.
From the king of the dinosaurs the Tyrannosaurus Rex to the formidable Brachiosaurus, dinosaurs are a perennial favorite of children… of all ages.The 14 stunning images in this bookazine reveal the dinosaurs as you have never seen them before. Every poster is accompanied by the facts and figures surrounding the individual dinosaurs, including information about their habitat, food and predators. Featuring a dinosaur family tree and scale pictures to help compare the size and dominance of these incredible beasts, this entertaining and educational collection will captivate and amaze.
Sixty-five million years ago, a comet or asteroid larger than Mount Everest slammed into the Earth, inducing an explosion equivalent… to the detonation of a hundred million hydrogen bombs. Vaporized detritus blasted through the atmosphere upon impact, falling back to Earth around the globe. Disastrous environmental consequences ensued: a giant tsunami, continent-scale wildfires, darkness, and cold, followed by sweltering greenhouse heat. When conditions returned to normal, half the plant and animal genera on Earth had perished.This horrific chain of events is now widely accepted as the solution to a great scientific mystery: what caused the extinction of the dinosaurs? Walter Alvarez, one of the Berkeley scientists who discovered evidence of the impact, tells the story behind the development of the initially controversial theory. It is a saga of high adventure in remote locations, of arduous data collection and intellectual struggle, of long periods of frustration ended by sudden breakthroughs, of friendships made and lost, and of the exhilaration of discovery that forever altered our understanding of Earth's geological history.
Sixty-five million years ago, a comet or asteroid larger than Mt. Everest slammed into the Earth, causing an explosion equivalent… to the detonation of a hundred million hydrogen bombs. Vaporized impactor and debris from the impact site were blasted out through the atmosphere, falling back to Earth all around the globe. Terrible environmental disasters ensued, including a giant tsunami, continent-scale wildfires, darkness, and cold, followed by sweltering greenhouse heat. When conditions returned to normal, half the genera of plants and animals on Earth had perished.This horrific story is now widely accepted as the solution to a great scientific murder mystery what caused the extinction of the dinosaurs? In T. rex and the Crater of Doom, the story of the scientific detective work that went into solving the mystery is told by geologist Walter Alvarez, one of the four Berkeley scientists who discovered the first evidence for the giant impact. It is a saga of high adventure in remote parts of the world, of patient data collection, of lonely intellectual struggle, of long periods of frustration ended by sudden breakthroughs, of intense public debate, of friendships made or lost, of the exhilaration of discovery, and of delight as a fascinating story unfolded.Controversial and widely attacked during the 1980s, the impact theory received confirmation from the discovery of the giant impact crater it predicted, buried deep beneath younger strata at the north coast of the Yucatán Peninsula. The Chicxulub Crater was found by Mexican geologists in 1950 but remained almost unknown to scientists elsewhere until 1991, when it was recognized as the largest impact crater on this planet, dating precisely from the time of the great extinction sixty-five million years ago. Geology and paleontology, sciences that long held that all changes in Earth history have been calm and gradual, have now been forced to recognize the critical role played by rare but devastating catastrophes like the impact that killed the dinosaurs.
Sixty-five million years ago, a comet or asteroid larger than Mount Everest slammed into the Earth, inducing an explosion equivalent… to the detonation of a hundred million hydrogen bombs. Vaporized detritus blasted through the atmosphere upon impact, falling back to Earth around the globe. Disastrous environmental consequences ensued: a giant tsunami, continent-scale wildfires, darkness, and cold, followed by sweltering greenhouse heat. When conditions returned to normal, half the plant and animal genera on Earth had perished.This horrific chain of events is now widely accepted as the solution to a great scientific mystery: what caused the extinction of the dinosaurs? Walter Alvarez, one of the Berkeley scientists who discovered evidence of the impact, tells the story behind the development of the initially controversial theory. It is a saga of high adventure in remote locations, of arduous data collection and intellectual struggle, of long periods of frustration ended by sudden breakthroughs, of friendships made and lost, and of the exhilaration of discovery that forever altered our understanding of Earth's geological history.
Praise for the first edition:"A gift to serious dinosaur enthusiasts" --Science "The amount of information in [these] pages is amazing.… This book should be on the shelves of dinosaur freaks as well as those who need to know more about the paleobiology of extinct animals. It will be an invaluable library reference." --American Reference Books Annual"An excellent encyclopedia that serves as a nice bridge between popular and scholarly dinosaur literature." --Library Journal (starred review)"Copiously illustrated and scrupulously up-to-date... the book reveals dinos through the fractious fields that make a study of them." --Publishers Weekly"Stimulating armchair company for cold winter evenings.... Best of all, the book treats dinosaurs as intellectual fun." --New Scientist"The book is useful both as a reference and as a browse-and-enjoy compendium." --Natural HistoryWhat do we know about dinosaurs, and how do we know it? How did dinosaurs grow, move, eat, and reproduce? Were they warm-blooded or cold-blooded? How intelligent were they? How are the various groups of dinosaurs related to each other, and to other kinds of living and extinct vertebrates? What can the study of dinosaurs tell us about the process of evolution? And why did typical dinosaurs become extinct? All of these questions, and more, are addressed in the new, expanded, second edition of The Complete Dinosaur. Written by many of the world's leading experts on the "fearfully great" reptiles, the book's 45 chapters cover what we have learned about dinosaurs, from the earliest discoveries of dinosaurs to the most recent controversies. Where scientific contention exists, the editors have let the experts agree to disagree. Copiously illustrated and accessible to all readers from the enthusiastic amateur to the most learned professional paleontologist, The Complete Dinosaur is a feast for serious dinosaur lovers everywhere.
With each step you take, whether it’s outside your back door, at the edge of a nearby pond, or along… a path in a national park, you may be setting down your foot in the same place that a dinosaur once did. Just imagine, dinosaurs roaming the same earth we live on today! What an amazing place our planet must have been during the time of those mighty creatures. There were enormous plant-eating dinosaurs, perhaps gathered in herds, grazing in a forest-surrounded meadow. And there were packs of small but fast and smart meat-eating dinosaurs that searched for an opportunity to attack their prey. And there was the ultimate predator in the Tyrannosaurus rex, causing other dinosaurs to flee wherever he went. The Fact Atlas series welcomes you to the world of dinosaurs, vanished now but for the efforts of scientists, museums, and your own imagination. With a little help from this fact-filled dinosaur book, the prehistoric world comes alive with dinosaurs big and small, scary and just plain fascinating. This book offers a history of dinosaurs that challenges young readers to question and research what these prehistoric creatures were really like and why. Illustrations accompany dino statistics to help kids build the closest possible understanding to what it was like when dinosaurs roamed the earth.
Stomp, crash, and thrash through hours of puzzles, games, and activities!The Everything Kids' Dinosaur Book combines exciting and educational facts… about dinosaurs with super-cool puzzles and awesome activities that will keep kids roaring, stomping and leaping for more. Inside they'll find out about the different types of dinosaurs, where they came from, how they lived and a ton (or two) more!With The Everything Kids' Dinosaur Book, kids can:Learn about what paleontologists studyManeuver through swampy amphibian mazesCreate big dino fun with crafty art and cooking projectsHunt for hidden dinosaurs in the most unlikely placesDiscover modern-day fun facts about fossilsPart educational tool, part activity book, The Everything Kids Dinosaur Book is guaranteed to keep kids entertained--and learning--for hours at a time.
A mesmerizing overview of the world as it was when glaciers covered the earth and long-extinct creatures like the woolly… mammoths and saber-toothed cats battled to survive.Go back 20,000 years ago to a time of much colder global temperatures when glaciers and extensive sheets of ice covered much of our planet. As these sheets traveled, they caused enormous changes in the Earth's landscape and climate, leading to the evolution of creatures such as giant armadillos, saber-toothed cats, and woolly mammoths as well as club-wielding Neanderthals and later the cleverer modern humans. Nico Medina re-creates this harsh ancient world in a vivid and easy-to-read narrative.
Discover what dinosaurs looked like and what they ate, what their names mean, where they lived, and much more. This… field guide is jam-packed with insights into the lives of creatures from the Mesozoic era, featuring up-to-date information based on recent discoveries. You'll also find loads of dinosaur-related activities, including:• Coloring pages• Word searches• Spot-the-differences• Drawing exercises• Mazes & more! <p>This is a fixed-format ebook, which preserves the design and layout of the original print book.</p>
Bigger and Better, Updated and Expanded We live in a golden age of paleontological discovery—on average, we find one new… dinosaur species per week. The most fascinating among them take their place in this updated edition of Dinosaurs—The Grand Tour; from Aardonyx, a lumbering beast that formed a link between two- and four-legged dinosaurs, to Zuniceratops, who boasted a deadly pair of horns. Here, you&’ll find everything worth knowing about every dinosaur worth knowing—more than 300 in all, including: Amphibious Halszkaraptor looks like no other dinosaur we&’ve found—with a head and body the size of a duck&’s, sharp claws . . . and a swanlike neck.Longer than a blue whale and three times taller than a giraffe, Patagotitan is a newly discovered contender for &“biggest dinosaur ever.&”The speedy little feathered predator Stenonychosaurus was an anatomical marvel, with retractable claws, asymmetrical ears for advanced hearing, incredible night vision, and a huge brain.Oviraptor—whose name means &“egg thief &“—doesn&’t deserve its bad rap. This specimen from 1923 is now proven to have been sitting by its own eggs—not stealing another&’s.Sinornithosaurus prove that dinosaurs shed their skin the same way that humans do, rather than sloughing it off all at once like a snake. At-a-glance sidebars put each dinosaur&’s diet, size, and location at your fingertips. Stories of harrowing expeditions conjure the thrills of history&’s most famous dinosaur hunters. Highlights from recent research reveal what&’s new in paleontology today, including scientists&’ evolving idea of what dinosaurs actually looked like. (Hint: They were more colorful—and feathery!—than we ever thought before.) And illustrations on virtually every page bring these prehistoric creatures to life in all their glory.