"Can you tell me exactly how you do it?"
asked Sayid.
The squid explained: "We have two pocket-
like openings on each side of our heads.
Through these, we draw water into a cavity in
our bodies, and then we expel this water with
great pressure through a narrow pipe just under
our heads. With the force created, we can move
quickly in the opposite direction to the water we
expel. And we can also escape very quickly from
any enemy chasing us."
"OK," said Sayid, "Let's say that you are not
quick enough to escape; what do you do then?"
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