They multiply like … fish! Apparently, a handful of goldfish dumped into a lake in Boulder, Colorado, just three years ago have reproduced and now number in the thousands.
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| Credit: Colorado Parks and Wildlife |
The explosion of these exotic fish, which are not native to anywhere in North America, has biologists worried and trying to figure out options for the animals' removal.
"Based on their size, it looks like they're 3-year-olds, which were probably produced from a small handful of fish that were illegally introduced into the lake," Ben Swigle, a fish biologist at the Colorado Parks and Wildlife (CPW), told Live Science.
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