article_snippet.sent: Teller Lake has become a giant fish bowl.
article_snippet.sent: The lake in Boulder, Colorado, has been invaded by thousands of gold fish, which wildlife officials say started as someone dumping 'four or five' of wildlife officials pets in the water two or three years ago.
article_snippet.sent: The animals have now multiplied to over 3,000 or 4,000, it's believed, and are threatening to over-run the natural species in Teller Lake, by eating up all The animals resources and spreading unnatural diseases. '
article_snippet.sent: Invasion: Lake Teller in Boulder has been invaded by 3,000 to 4,000 goldfish, which wildlife officials say started as someone dumping 'four or five' of wildlife officials pets in the water two or three years ago .
article_snippet.sent: Goldfish are not a native species in Colorado and are very harmful to the local aquatic ecosystem .
article_snippet.sent: Fish that are native to the lake that are now being threatened by Goldfish include channel catfish, blue gill fish and sun fish .
article_snippet.sent: Worried: Colorado Parks and Wildlife
article_snippet.sent: Scene: a lake stretches about 12 acres in Boulder, Colorado .
highlights_snippet.sent: Teller Lake in Boulder, Colorado, is overrun with 3,000-4,000 goldfish .
  