3 ms·

Maybe I should have elaborated a bit more. My original point was that it makes sense that the visible spectrum was colocated with the frequencies not readily ab

by ethbro 9y ago

Maybe I should have elaborated a bit more. My original point was that it makes sense that the visible spectrum was colocated with the frequencies not readily absorbed by water. Which is to say, eyes were made for seeing the light that was bouncing around in the sea (and not the frequencies that had already been absorbed). So yes, the simplest answer you can imagine.

edaemon 9y ago
Right, that makes perfect sense. I'm mostly unsure of what tempestn said.
labster 9y ago
Also to the same point: eyes evolved to see the wavelengths where the Sun outputs the majority of its energy, which is a significant factor in its ability to penetrate water to any depth.