Experts believe that eyes have evolved independently as many as 40 different times during the course of life here on Earth. It would be reasonable, then, to conclude that vision is beneficial to living beings. Seeing is believing, after all. But — bad news — you ain’t seen nothin’ yet. Truly. Light is a wave (kind of, just go with it), and it can have a variety of wavelengths and frequencies, which are all mapped out on a big
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