You have come to the conclusion that all magic is just different expressions of the same natural phenomena. Specifically, you understand that Wild Shape is nothing more than, in essence, a specialized form of the Polymorph spell. This knowledge has led to an exponential increase in your own Wild Shape abilities:

• You gain a +1 bonus to your Intelligence.
• You can learn to use a Wild Shape form from studying the creature's traits and characteristics through research and text sources. By adding these notes to your own personal bestiary over the course of multiple long rests (equal to the subject's CR), you can Wild Shape into that creature. The Challenge Rating of creatures you are able to study and document in this way cannot exceed your Intelligence modifier.