Will human eyes develop night vision capability due to evolution?
Even scientists can only make a prediction based on the experiences they make. So an exat answer in this situation is impossible.
Human's already have a version of night vision (sort of). The iris in the eye changes based on the light conditions to let more in or out. So, if you sit in the dark for 20 minutes or so, you will be able to see basic shapes. True night vision, however, would have to come from a drastic change in our living conditions. Say, for example, a group of humans lived underground for thousands of years. Then there would be a chance that their descendants would have some level of night vision.
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