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Dinosaurs came in all different sizes and shapes. Some were huge with long necks and tails, some were fat with short legs, some were small and very fast, some were tall and stood on two legs. The longest dinosaurs like Seismosaurus were nearly 150 feet long, and it weighed more than 7 fire engines. Argentinosaurus was not as long but weighed up to 100 tons. Tyrannosaurus Rex, one of the largest dinosaurs with sharp teeth and claws, was so big that you could have climbed right into its mouth. The smallest dinosaurs, Compsognathus, were 70 cm. long (about the size of a chicken) and would have fit in your bookbag. Most dinosaurs were in-between. Brachiosaurus has been estimated to have weighed between 32 and 87 tons. To get an idea of how heavy that is, think about how much an elephant weighs. Then think about how much 20 elephants would weigh. That's how much some of these dinosaurs that were nearly half as long as a football field weighed! The largest animals to have ever lived were not dinosaurs. The blue whale is the largest animal. Some of these whales weigh about 200 tons. So they are more than twice as heavy as the largest dinosaurs. (scroll down this linked page to see the answer) |
Brachiosaurus
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Click the Name on the List and Get a Card with the Weight and Size |
BBC Dinosaurs "How Do We Know" Questions & Answers |