The Story of Why Guam is Narrow in the Middle

According to old Chamorro mythology, Guam used to be much larger.  This is the myth explaining Guam's current shape.

A long time ago, the island of Guam was much larger and very prosperous.  However, there was a giant parrot fish (or Scaridae) that was determined to devour the island due to the Chamorro people breaking a taboo.  Maybe a maga'lahi (first-born male head of a Chamorro clan) took a manachang (individuals of the lowest class in Ancient Chamorro society) lover or something similarly bad in Ancient Chamorro society.
After whichever taboo was broken, the once prosperous Chamorro people were now suffering through a drought and famine.  The people pleaded with their ante (ancestral souls or spirits) to help them.  They pleaded with their ancestors' skulls, which they called maranan uchan (a miraculous thing for rain).  However, the ancestors did not respond.  The parrot fish then began devouring the island.
All the men called upon their ancestors to help them in catching the fish.  Each day, the men went out to save Guam from the fish.
The women of Agaña always bathed at Agaña Spring.  One day, the women found lemon peels floating in the spring.  The women of Pago were known to use lemon peels to scent their hair.  The maga'haga (highest-ranking woman in a village) was the first to see the connection.  The parrot fish had almost bored a tunnel through the island.  At the rate the fish was devouring Guam,  the island would soon be cut in half.
Since the men were unable to stop the parrot fish, the maga'haga decided to step in.  She directed the women to cut their hair.  With their long strands of hair, the began to weave a strong, fine net to catch the parrot fish.  They laid the net in the water on the bottom of the spring.  The women tied ropes to the circumference of the net.  That evening, the fish climbed into the spring to sleep.  The women were lying in wait.    They surrounded the spring.  Each woman had a rope attached to the net.  When the fish finally settled in, the maga'haga gave the order to heave and pull up the net.
The women caught the fish and saved the island of Guam.  They then held a great feast from most of the parrot fish's carcass.  In order to preserve the rest of the fish, they salted it.  The women of Agaña shared the salted fish with the other villages.  This ended the famine on Guam.  Soon after it began to rain, helping the crops grew.  The island of Guam became happy and prosperous once more.  The people were content.
This is the myth explaining why Guam is narrow.