User blog comment:The Reptile King/Reptile Kingdom Exploration/@comment-28937613-20170212205653/@comment-27950421-20170213130020

The Edmontosaurs continue ignoring the humans as they graze, however on of them stops and sniffs the air. It makes a honking noise and soon the other stop eating and moving so that their backs to each other as they start looking around making short honking noises.