They can ride in your shoulder. Having a monkey while sailing in your pirate ship is strangely satisfying. 😎

If you put stuff in its inventory like eggs or materials and then put it on your shoulder it will weigh less than it would with the items in your own inventory making it perfect to cook kibble fast

Despite what others have said, they do NOT throw arrows.

Have troubles of disconnecting and dying and not being able to find your loot? Tame a high level with tons of health and place and tracker on it. It should remain by your body.