Dinosaurs! Fun Dino Facts for Toddlers and Preschoolers

Dinosaurs lived over 100 million years ago and were first mistaken for dragon bones by the Chinese. They had diverse features, with some having scales, wings, or the ability to roar. Paleontologists study dinosaur fossils to learn about these creatures. Dinosaurs varied greatly in size and diet, from the massive Argentinosaurus to the chicken-sized Compsognathus. The T-rex, once thought to be a fearsome predator, may have been more birdlike. Dinosaurs went extinct around 65 million years ago, possibly due to an asteroid, Ice Age, or volcanic eruption. Today, birds and reptiles are considered their closest living relatives.

What is the size and weight of the biggest dinosaur, the Argentinosaurus?

What are some theories about why dinosaurs went extinct?