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ing chambers operate in the same way as the tanks in a submarine do; in
other words, the nautilus needs pressurized air. In submarines, this need is
met by a special system installed by engineers in relevant places in the sub-
marine. But how does the nautilus find the pressurized air necessary to
expel the water?
The answer to this question introduces us to another amazing feature that
Allah created. A special gas is produced in the nautilus' body. This gas is
conveyed to the chambers through its bloodstream and eventually expels
the water from the cells. So a nautilus can sink or float to protect itself
against its enemies while hunting. In fact the diving capacity of the nau-
tilus is much higher than that of a submarine. A submarine dives only to
400 meters (1310 feet) while it is so easy for a nautilus to dive to 4,000 me-
ters (2.5 miles).
W O N D E R F U L C R E A T U R E S
You have noticed that there
is no difference between the
fossil of a nautilus that lived
a long time ago (below) and
the nautilus living today,
haven’t you?
