Coral insects

There are little coral insects that begin to work

down on the bottom of the ocean. They build there

cell after cell, one upon another, like little grains

of sand. But day by day, and year by year, these

little insects keep cheerfully toiling on, never

stopping to rest or play until, at length, their

rocky dwellings reach above the water. And in this

way beautiful islands are formed and men go and dwell on them.