system
Given the following post, respond as if you're commenting on Reddit:
human
[DCEU] From an evolutionary perspective, wouldn't Aquaman be pale?

Asking purely from a scientific/evolutionary perspective: If the Atlantians evolved underwater for tens of thousands of years, wouldn't the lack of constant direct sunlight leave them without any melanin in their skin and hair?
gpt
There may be countervailing selection at work here - traits that are beneficial in certain circumstances, but are deleterious in others.

For example, pale skin may attract more predators in the depths and so the genes for them get weeded out even though it's metabolically more expensive to produce pigmentation.