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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.
Elaborate pop-ups include an awesome, futuristic laboratory and an incredible cityscape complete with rampaging dinos, while lift-the-flaps, moving parts, and a few hidden secrets add extra fun The Time Pirates' visit to the museum's "Dinorama" exhibition is interrupted when an army of real-life armored dinosaurs invade. With evil genius Tempus Fugit controlling the prehistoric predators, there's no time to lose if the Time Pirates are going to save the city from total dino destruction! An action-packed story, press-out pieces, two stand-alone pop-up dinosaurs, and an amazing pop-up cityscape and futuristic laboratory make this the perfect book for young adventure fans.
Vivid, full-color illustrations and fact-filled text come together in this perfect book for young dinosaur fans. Children can learn to identify not only different dinosaurs, but also different periods--from the Triassic age, 215 million years ago, to the the end of the dinosaur reign. Illustrations feature a running time line.
Follows a typical day in the life of a family of Hypsilophodons, a smaller, lesser-known dinosaur whose great speed aided its survival.
An illustrated record book of theropod facts and figures--from the biggest to the fastest to the smartest. This compendium features more than 3,000 records, covers some 750 theropod species, and includes a wealth of illustrations ranging from diagrams and technical drawings to full-color reconstructions of specimens.
In 1980 Nobel Laureate Luis Alvarez announced his theory of the dinosaurs final demise: a gigantic meteorite crashed into the earth and raised a cloud of dust that caused darkness for years, suppressing photosynthesis, which impeded plant growth, and eventually starved the dinosaurs. This idea exploded into common awareness with almost unprecedented speed, and was instantly embraced by the media and the public. Almost without question, it quickly became the hottest scientific "fact". Unfortunately for Alvarez, many in the scientific community did to support this theory, and in fact later research showed the impossibility of such an idea. The Great Dinosaur Extinction Controversy chronicles the fantastic story of how this hypothesis became so widespread, the way it became "common knowledge" - from the pages of Science to The New York Times to Parade Magazine, the controversy it caused, and the ample scientific research that proves the theory wrong. Officer and Page also present an attractive and carefully investigated alternative explanation for the mass extinctions that occurred at the end of the Cretaceous period. Through this account they show the ways that sound science should be performed and the findings transmitted.
Searching through Outer Mongolia for the missing Professor Angus Starbuck, who discovered a dinosaur bone of modern-day origins, Indiana Jones confronts the region's fiercest warlord and learns of a living triceratops--Novelist.
Something very big and very dangerous is swimming in the seas of planet Aqua Minor. It's destroying all of the fish factories and making mincemeat out of all the submarines. So Captain Teggs and the brave crew on the DSS Sauropod set off to investigate. What do they find? A gigantic liopleurodon has made Aqua Minor its home. At first all the evidence points to him as the culprit behind the mass destruction. But then new evidence is uncovered that shows it couldn't be the liopleurodon. Is another monster lurking beneath the seas as well?
Dinosaurs, comics, and outer space, together at last! This two-books-in-one format of Blue Apple's acclaimed Balloon Toons series is sure to please kids, parents, and educators alike.
Explains how scientists learn about dinosaurs and what their discoveries have revealed about Apatosaurus.