Orion Comstock, Director of Herpetology for Star Eco Station, shows off  XO, a six-year-old, 50 pound Reticulated Python (Python reticulatus) during the "Earth Day on the Promenade" on Saturday, April 14, 2007. Reticulated Python is the longest existing snake a can grow up to 30 feet in length. The species is relatively slender and long, and therefore not the largest.