How Did Dinosaurs Get So Huge? | Eons

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pbs digital studios eons extinct dinosaur non-avian dinosaur jurassic period cretaceous period blue whale terrestrial mammals size biggest dinosaur titanosaur patagotitan hornless rhinocerous paraceratherium reproduction gestation offspring dinosaur egg dinosaur skeleton air sac non-extinct dinosaur bird bird respiration respiratory system sauropod bones air bag saurischian theropod saurischian theropod

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Science

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Grade 9 Grade 10 Grade 11 Grade 12

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How Did Dinosaurs Get So Huge? | Eons

Part of why we’re so fascinated with extinct dinosaurs is it’s just hard for us to believe that animals that huge actually existed. And yet, they existed! From the Jurassic to the Cretaceous Periods, creatures as tall as a five-story building were shaking the Earth.

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PBS Learning Media