(Courtesy: Zoo Miami) MIAMI - A Komodo dragon at Zoo Miami needed emergency surgery to remove a water bottle after officials say a visitor dropped it into the animal's enclosure.The 9-year-old reptile, named Estrella, had to undergo the risky procedure because she would have died from a severe obstruction, zoo officials said.“We had to pull out this massive, it was about a foot long, this water bottle with a metal cap on it and a clip at the end, the whole nine yards,” said Zoo Miami's Ron Magill.(Courtesy: Zoo Miami) The bottle was too large to be naturally passed and could not be extracted by endoscopy, according to zookeepers.