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100 Facts Dinosaurs

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Like birds and reptiles today, dinosaurs built nests and laid eggs. Some even fed and protected their babies. [10] Most meat-eating dinosaurs had bones filled with air. Though their bones were huge, they weren’t as heavy as they looked. Birds have the same kind of hollow bones. [10] People have only been on Earth about 2.5 million years. Dinosaurs lived on Earth for about 160 million years, which is about 64 times longer than people been around. [5] Meat-eating dinosaurs are known as theropods, which means “beast-footed,” because they had sharp, hooked claws on their toes. In contrast, plant-eating dinosaurs tended to have blunt hooves or toenails. [4] Slim dinosaurs such as Compsognathus and Ornithomimus were among the fastest dinosaurs. However, the cheetah can run faster than any dinosaur that existed. [2]

The first known American dinosaur was discovered in 1858 in the marl pits in Haddonfield, New Jersey. Although other fossils were previously found, they were not correctly identified as dinosaur fossils. [11] Dinosaurs had different self-defense mechanisms. Some, like meat eaters, had sharp teeth. Plant eaters had long horns or sharp spikes. Other dinosaurs were covered in bony plates. [10] Scientists estimate that there were over 1,000 different species of non-avian dinosaurs and over 500 distinct genera. They speculate there are many still undiscovered dinosaurs and that there may be as many as 1,850 genera. [3] Parasaurolophus had a crest that looked like half of a trombone. The male’s crest was up to 6 feet (1.8 m) long, which was the biggest out of all the dinosaurs. [8] In 1,000 Amazing Dinosaur Facts children can discover the fastest, the slowest, the deadliest, and the downright weirdest dinosaurs ever to roam the planet! This book of mind-blowing dinosaur facts will make the ideal gift for kids who love all things prehistoric, giving a real sense of the colossal scale of dinosaurs and how and where they lived.A newborn human baby has a bigger brain than most adult dinosaurs had. Whales and dolphins have the biggest brains of all living animals. [8] In the original Jurassic Park, Michael Crichton wanted John Hammond, the park overseer, to be a dark "Walt Disney." [9] The tallest plant eater was the Brachiosaurus (Giraffatitan brancai). Its head was up to 39 feet (12 m) off the ground. [10] The smartest dinosaur was probably the Troodon (“tooth that wounds”). It had a brain the size of a mammal or bird today. It also had grasping hands and stereoscopic vision. [11]

The toothiest dinosaur was the hadrosaurs. It could have over 1,000 teeth and it continually grew new ones. [10] Seymour Simon, whom the NY Times called "the dean of [children's science:] writers," is the author of more than 250 highly acclaimed science books (many of which have been named Outstanding Science Trade Books for Children by the National Science Teachers Association). When children read these fact files, they can learn lots of interesting information all about dinosaurs. They can find out: George and Levi Sternberg find the first impression of dinosaur skin, belonging to an Edmontosaurus, in Wyoming.

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Some scientists believe that Tyrannosaurus rex may have been able to run as fast as 18 mph (28 km/h). Other scientists believe it could not run at all because it was so big. [10] The Stegosaurus has the smallest brain for its body size of any known dinosaur. Its body was the size of a van, but its brain was the size of a walnut. [8] Was this a fun read? Our team of specialists have created loads of eBooks that your young learners can read so that they can continue to enhance their skills. They have also created resources that compliment this Dinosaur eBook so that you can plan the best lesson ever! Here are some of them.

Gideon Mantell (1790-1852) put Iguanodon's thumb claw on top of its nose • Paleontologists are not perfect. For example, Gideon Mantell (1790-1852) put Iguanodon’s thumb claw on top of its nose. It stayed that way for 40 years. Edward Cope (1840-1897) reconstructed Elasmosaurus (“thin plate”) with its head on the end of its tail. Until recently, Apatosaurus (or Brontosaurus) appeared in museums with the head of Camarasaurus (“chambered lizard”). [10] Some dinosaurs were carnivores, which means they ate meat. This would include other species of dinosaurs and also birds and insects. The most famous example of this type of dinosaur is the T-Rex, one of the most effective predators in history. Baby Mussaurus (“mouse lizard”) are the smallest dinosaur skeletons ever found. They would fit inside a shopping bag. [8]

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Plant-eating dinosaurs may have contributed to global warming by passing gas • Sauropods were the tallest animals that ever lived. Some were more than twice the height of a giraffe. [4]

Did you know that the largest dinosaur was longer than a tennis court but its babies were no bigger than a newborn human baby? That the smallest dinosaur weighed less than a teaspoon of sugar? Or that the largest flying reptile was as tall as a giraffe, with wings the size of a small plane? Children aged 9+ will love all these facts and more, presented either with jaw-dropping CGI illustrations or eye-popping photography - plus additional boxes feature diagrams that make information easy to understand. These fact files are available in three different reading levels to support your teaching as well. The first level is a simple word and picture matching activity while the other fact files involve reading at two levels. Explorer Roy Chapman Andrews found the first dinosaur nest known to science in 1923 in the Gobi Desert of Mongolia. Before he found the nest, scientists were unsure how dinosaur babies were born. [10] The smallest dinosaur egg ever found was only 3 centimeters long and weighed 75 grams. It is not known what kind of species it came from. The largest dinosaur eggs ever found belong to a meat eater in Asia called segnosaurus (“slow lizard”). The eggs are around 19 inches long. [11] Tyrannosaurus rex ate up to 22 tons of meat a year. It had jagged teeth 6 inches (15 cm) long. It couldn’t chew, so it swallowed its food in large chunks. [2]Struthiomimus (“ ostrich mimic”), as well as other small hunters, made high-pitched, screechy noises similar to an ostrich. [8]

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