What happens to water as it moves through sand and water?

If you pour water on the sand, the water seems to disappear into the sand. It doesn't actually disappear—it drains into the tiny pores between the grains. Once all these pores are filled with water, the sand is saturated, which means that the sand cannot take up any more water.

It is evolution, because we all have some of the same traits like eye color or shape or ears.