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Different Wavelengths: Science Finds Hummingbirds See Ultraviolet Light Invisible to Humans
Tags: Current Focus, Health,
See these amazing pictures in WSJ in RGB displays of what humming birds see and humans see in nature, in trees and gardens. Humans have only three sensors for colors while humming birds have a fourth sensor to see ultraviolet light. These sensors give it the ability to look for food. Its wings are in a blur often beating 80 times per second with amazing ability to swerve and hover and move quickly. Yet humming birds may have no sense of smell.
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