Starting at transformation level 2, you may use a bonus action to enhance your body’s sensory organs, or grow entirely new ones. While this effect is active, you may choose one of the following Adaptations:
Keen Senses: Your eyes bulge, your skin tingles, and your nostrils flare. You gain advantage on Wisdom (Perception) checks that rely on sight, hearing, or smell.

Darkvision: Your eyes take on the appearance of a cat’s, growing to fill the upper half of your face. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray. If you already possess darkvision from another source, the distance extends to 120 feet instead.

Third Eye: Another eye emerges from your forehead, granting you the ability to see invisible creatures and objects as if they were visible. These Adaptations last until you become unconscious, use a different one of these Adaptations, or use a bonus action on your turn to end the Adaptation. Once you reach Transformation Level 4, you may choose two of
the listed Adaptations instead of one.