These things are freakin cowards. They will run at the first sign of danger. Make sure to carry with argy while using for maximum efficiency. If you trained it for gathering prime, put it in a tame order group of your choice, and whistle attack target on the dead creature while carrying it with argy/quetz, preferably a quetz because you can carry and attack at the same time, and fly close. Then once it harvests, fly home and enjoy the prime!
This guy is my favorite dino to start. It can farm LOTS of fiber, chitin, berries, rare mushrooms, rare flowers, polymer, etc. And it has a considerably good melee and health. But people don't see its value just because its a big coward iguana... Lmao. But for real, they're really one of the best dinos to get at the beginning, if not the best. Give this an up to let people know.
Moschops is literally one of the best chitin and polymer farmers, if not the best. Kill trilobites with it and you'll see how much chitin it gets (and a bit of oil and pearls too). I spent the last hour killing trilobites with Potato (my Moschops) and got two chests full of chitin. Apparently people don't know this so give it an up to let everyone know.