I WONDER - Why Are Peacock Feathers So Colourful?

The video discusses how microscopic crystal-like structures on peacock feathers refract light differently based on their movement. This phenomenon is also observed in hummingbirds and butterflies, where similar structures on their wings create unique light effects.

In what ways do the wings of butterflies create similar visual effects as Peacock feathers?

Discuss the significance of light refraction in the natural world as observed in Peacocks and butterflies.