DEAGOSTINI / UIG / SCIENCE PHOTO LIBRARY DEAGOSTINI / UIG / SCIENCE PHOTO LIBRARY
Hypacrosaurus dinosaurs and young. Computer illustration of Hypacrosaurus sp. dinosaurs with their newly-hatched young in a nest. This herbivorous ornithopod hadrosaur (duck-billed dinosaur) lived around 72-70 million years ago, during the Late Cretaceous period, in what is now North America.
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