Sticks

When exploring during creature stage, you will notice sticks on the ground. Sticks appear to have no function in game, however, they can be used as tools. Click on a creature while grasping a stick, and you can stun the target creature for a couple of seconds. This can help if you are attacking the creature for a split-second of advantage when said advantage may be the difference in a win/loss in a fight.

Another function of sticks is food gathering. If there is a plant you can't reach with your creature, and you are grasping a stick, click on the plant, and it could knock the food down to the ground, letting you eat it.

There are other theories as to the usage of sticks.