Biologists now think that that tiny creatures–from worms to insects–are much more important to the health of our planet than they seem to be. In fact, the fate of all life (including us!) may depend on them.
In the November 10th edition of the Observer, John Vidal quotes entomologist E.O. Wilson (who studies ants) as saying, "When you thrust a shovel into the soil or tear off a piece of coral, you are, godlike, cutting through an entire world. You have crossed a hidden frontier known to very few. Immediately close at hand, around and beneath our feet, lies the least explored part of the planet’s surface. It is also the most vital place on Earth for human existence.