David and Michele began with a bike ride in the Mexican countryside.  How strange?  How unique!  As she peddled along the majestic bike trail she passed an iguana.  What a miraculous reptile from the prehistoric age!  She shared her thoughts with her husband.  Unfortunately, David was more concerned about staying on the trail than listening to Michele.  She remembered reading to her third graders how iguanas are herbivores, live in trees, and how they defend themselves by whipping their tails.