Is there a trick to bring a dinosaur to sleep without stun it?

It's about the game Jurassic world evolution, and my job is to photograph a sleeping dinosaur, now I've attached myself to 2 spinosaurs for a while, but except that the 2 (full posts) run in circles and yell at each other, nothing happens! Have I chosen the wrong dinosaurs are herbivores better suited for that?

Just to mention if it's important I play the Xbox One version.

Good night song sing

If you read through it then you would notice that it is a game ♂️

They do that when they feel like it…

You mean that you can't influence?

Go ahead and cry

Far as I do not know but I always have a huge herbivore gehge where almost always someone pisses

But not because of you 💁♂️

If those are rattling on the day they will probably sleep at night.

Too bad that there's no day and night cycle in the game