Brown seems to be such a default colour for things in nature and in day to life. Why is it so common for things to be or turn this colour in contrast to the vast array of other colours around?
In: Earth Science
Humans can only see 3 colors and a mantis shrimp can see 8. So to a mantis shrimp humans are basically color blind. Your question why is everything brown is like a colorblind person asking why everything is grey.
Edit: mantis shrimp can see 12 colors
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