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If you go swimming
in a blue lagoon
you might see a fish
who is a big balloon.

Most the time he is
little and flat,
but if there is danger
he puffs up fat.

Stay away from him;
he is poisonous,
swimming too close
is very dangerous.

A puffer fish
has tiny fins.
When he puffs up
he floats more than swims.

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