The Megalodon was the biggest prehistoric fish. It looked like a shark, though it was three times bigger. [4] Astonish your friends and family with this incredible collection of mind-boggling facts about the scariest animals ever to walk the Earth. When children read these fact files, they can learn lots of interesting information all about dinosaurs. They can find out:

Snakes and lizards shed their skin when they grow. Researchers believe that dinosaurs may have done the same. [8]Dinosaur skulls had large holes or “windows” that made their skulls lighter. Some of the largest skulls were as long as a car. [4] American paleontologist Joseph Leidy describes the first reasonably complete dinosaur skeleton, near Haddonfield, New Jersey. Seymour Simon is also a creator and the author of a series of 3D books and a series of Glow-in-the-Dark Books for Scholastic Book Clubs, a series of leveled SEEMORE READERS for Chronicle Books, and the EINSTEIN ANDERSON, SCIENCE DETECTIVE series of fiction books. His books encourage children to enjoy the world around them through learning and discovery, and by making science fun. He has introduced tens of millions of children to a staggering array of subjects; one prominent science education specialist described Simon's books as "extraordinary examples of expository prose."

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] In the original Jurassic Park, Michael Crichton wanted John Hammond, the park overseer, to be a dark "Walt Disney." [9] Plant-eating dinosaurs often lived together for protection, like herding animals today do. The herds ranged from just a few adults and their young to thousands of animals. [3]

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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] 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). Dinosaurs may not be extinct • Many scientists believe that birds are dinosaurs and, therefore, dinosaurs are not actually extinct. [10] BBC Teach has a useful set of videos and resources to support teaching a dinosaur topic in EYFS, KS1 and KS2.

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] 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] A dinosaur called the Pegomastax is one of the weirdest dinosaurs known. Described as a cross between a parrot and porcupine, it had a beak with teeth that sharpened themselves against each other. [1]

The mass extinction of the dinosaurs and other animals that took place 65.5 million years ago is known as the Cretaceous-Tertiary extinction event, or the K-T event. Scientists have several theories for this extensive die-off. One theory proposes that small mammals ate dinosaur eggs until the population became unsustainable. Other scientists believe the cause was dinosaurs’ bodies becoming too big for their small brains, a great plaque decimating the population, starvation, or climate change. [11] 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] Ichthyosaur babies were born tail-first. Th they had been born head first, they would have drowned before they could reach the water's surface to take their first breath. [5] George and Levi Sternberg find the first impression of dinosaur skin, belonging to an Edmontosaurus, in Wyoming. The oldest known dinosaur is Saltopus. A small carnivore, this dinosaur lived over 245 million years ago. [2]

Stunning CGI graphics, fun visual comparisons, and diagrams make stats and facts easy to understand. Deinosuchus was a huge prehistoric crocodile. It most likely had the strongest bite out of any dinosaur, including Tyrannosaurus rex. It weighed eight times as much as today’s crocodile. [8]While dinosaurs had the same set of leg bones, some had feet like a rhinoceros, elephant, bird, or a pig. The biggest footprints ever found were 3 feet (1 m) across and 4 feet long. Millipedes have more legs than any other animal—up to 750. [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.