 DPS troopers caught an enormous Nile monitor lizard on the eastbound loop 101 in North Phoenix this morning. The department's Bart Graves says they had to call in some help. The Nile monitor actually fell into a storm drain on the side of the highway. Upon arrival, the Herpetological Society successfully removed the storm grate, reached down, and rescued the Nile monitor. Connie Weber, Arizona News Radio.