Dolphins in the Light

Dolfins in Light
So, when dust(mote) travels in sun beams and lights up it creates magic. For me, when diving, when light beams travel in the water, it creates magic as well. However, the scientific part of my mind notes how the physics of light travels in straight lines and then on top of that the prism effect can cause the light to divide from all encompassing white light, light that is composed of all the colors into fractions and carry beams of light of only green or blue or whatever. Yes, my mind is a very busy place and yes, questions of the universe prevail in my mind. But whatever, can you imagine that since the dolfin perceive things different than us, it only makes sence that they percieve light different than us as well, especially in their own envirionment. Is this how they perceive light and are we the ones who can't see what is right in fromt of us?
Robin