Several years ago, we operated an office in the Quepos area. I used to spend about one week every month there. On one visit I started to notice thick blue ropes strung across the road, about twenty feet up. I was informed that they were the new "monkey bridges". One of the major causes of death for monkeys is power lines. They usually travel from tree limb to tree limb. When they encounter a wide street, they will sometimes us a power line to cross over. The problem occurs when they grab two lines at once, and complete the circuit. Instant death occurs.