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Description
Here is Parasaurolophus and Gryposaurus in the same picture. We all know that Parasaurolophus has the famous head crest, while Gryposaurus lacks one. But, they both use their communication skills. Parasaurolophus uses its head crest to produce a trumpet-like sound to warn others of danger. Gryposaurus has a distinctive nasal arch that can be used for both visual and auditory signaling.

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Description
Here is Parasaurolophus and Gryposaurus in the same picture. We all know that Parasaurolophus has the famous head crest, while Gryposaurus lacks one. But, they both use their communication skills. Parasaurolophus uses its head crest to produce a trumpet-like sound to warn others of danger. Gryposaurus has a distinctive nasal arch that can be used for both visual and auditory signaling.

Skeleton by