Eli5: What’s the biological reason behind humans having eyes(irises) of different color? 967 viewsDecember 31, 2023 Question100.55K October 23, 2023 0 Comments I know that eye color is directly related to the amount of melanin present in the front layers of the iris. But what’s the biological need behind different color? In: 98 17 Answers ActiveNewestOldest Anonymous Posted October 24, 2023 0 Comments There was no need. It was simply an accident of the environment, where the genetics for lighter skin also started to affect eye colors. You are viewing 1 out of 17 answers, click here to view all answers. Register or Login
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