Three pythons stolen this month from an educational institution in St. Petersburg are still missing. Officials at the Science Center, 7701 22nd Ave. N, say no one has returned the snakes even though authorities offered a reward and promised not to prosecute. Now, an animal hospital has volunteered to act as an intermediary and will accept the snakes without questioning the person returning them. Officials at the Bayshore Animal Hospital, 3845 Tyrone Blvd. N, said they would then return the snakes to the Science Center. The 6-year-old pythons apparently were stolen from the Science Center on Feb. 8 during the Pinellas Regional Science and Engineering Fair attended by about 300 middle and high school students. The pythons, which are 3 to 4 feet long, are delicate and could die if they get too cold. "We're not interested in prosecuting at this point," Science Center spokesman David Bell said Saturday. "We would just like the snakes back."