The word “plankton” comes from the Greek for “drifter” or “wanderer.” An organism is considered plankton if it is carried by tides and currents, and cannot swim well enough to move against these ...

If you go to the beach and dip a bucket in the sea, you might at first think it contains lifeless water. But examine that water under a microscope and you will see your bucket contains a universe of ...

One might have been beneath the ferry that you took to France. Another could have been beneath the boat that carried the banana you ate for lunch from the Caribbean. Right now, too, somewhere in the ...