Understanding Refraction in Animals

The video explains the importance of refraction in animal vision and structural coloration. In vertebrates, refraction helps focus images on the retina, enabling visual information to be sent to the brain. Insects use similar refractive principles in their compound eyes. Refraction also contributes to structural coloration, where microscopic structures and thin oil layers create interference patterns, resulting in vibrant colors in birds, butterflies, and insects. These colors change with movement due to the angles of interference patterns.

What happens when beams of refracted colors collide?

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Describe how the angles of observation affect the appearance of iridescent colors.

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