Use headphones for best experience Info: When a pervatasaurus is lazy they'll do this hauntingly beautiful call that sounds shockingly human to lure in victims. The crest amplifies the sound making the call sound like multiple voices, why they sound human like because they're related to the modern day dolphins because dolphins mimic human speech and they both have the same behaviour but the pervatasaurus did the human like call without realising that they've predicted what a human would sound like.
Click to hear a pervatasaurus POV of the call