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Sinopsis

Article about Triceratops' horns and their purpose. Triceratops had a sharp horn growing above each eye and a smaller horn growing in the center of its nose. Scientists wonder whether these dinosaurs used their headgear to recognize each other, to fight off predators, or to do a different kind of battle.

Duración: 3 minutos (00:03:20)
Fecha de publicación: 27/07/2018; Unabridged; Copyright Year: — Copyright Statment: —

• Novela juvenil