Retinoic acid, this substance is a favorite of all nocturnal animals, because it can help maintain good night vision for night crawler capacity.

Retinoic acid is essential in cell differentiation? The function that determines what type of cell forms and how long it lives.

Through the leaves, a plume drifting to the taste of retinoic acid, which makes Finney who is always out of spirits during the day immediately excited.