In the 1993 movie Jurassic Park, the sound of the T-Rex's footsteps was the sound of cut sequoias crashing to the ground. [9] 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] 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] Some dinosaurs may have had colorful skin, but scientists don’t know for sure. It’s likely that most dinosaurs had green and brown scales to help them hide among trees and plants. [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.

Measuring 50 feet, Liopleurodon was the biggest aquatic reptile, half the size of the blue whale. [4] Dinosaurs lived during a period of Earth’s history called the Mesozoic (“middle life”) Era. They lived during all three periods of this era: the Triassic, Jurassic, and Cretaceous. [2] 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 only known example of the giant sauropod Seismosaurus appears to have choked to death on a stone it was trying to swallow to use as a gastrolith. [5] In the 1993 movie, Jurassic Park, there is only 15 minutes of dinosaur footage: 6 minutes of CGI and 9 minutes of animatronics. [9] Snakes and lizards shed their skin when they grow. Researchers believe that dinosaurs may have done the same. [8] Seymour Simon writes and photographs nature from his hilltop home in Columbia County in upstate New York, where he lives with his wife Liz Nealon. George and Levi Sternberg find the first impression of dinosaur skin, belonging to an Edmontosaurus, in Wyoming.

A Dinosaur Word Mat would be great to introduce learners to the important vocabulary of the topic. This one can be used as a visual aid as well as vocabulary reference for students while they are working on their activities. 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] Modern birds and reptiles have a single body opening for urination, defecation, and reproduction: a cloaca (Latin for “sewer”). Paleontologists believe that dinosaurs were similarly designed and reproduced by pressing their cloacas together in a “cloacal kiss.” Additionally, some dinosaurs may have had a penis like some birds do or other “intromittent organs” like crocodiles. Paleontologists believe a Tyrannosaurus rex male reproductive organ might have been up to 12 feet in length. [6] 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]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] Ben and Caroline Bingham, eds. Dinosaurs: A Visual Encyclopedia. New York, NY: Dorling Kindersley Limited, 2011. Your pupils can enjoy finding out about dinosaurs and hone their reading skills at the same time. This resource will also explain to children how the dinosaurs became extinct and introduce them to the different types of animal diets. Dinosaurs may not be extinct • Many scientists believe that birds are dinosaurs and, therefore, dinosaurs are not actually extinct. [10]