| A goldfish is the only animal that can see both infrared and ultraviolet light. |
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| A marine catfish can taste with any part of its body. |
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| A pregnant goldfish is called a twit. |
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| A tuna fish can swim 100 miles in a single day! |
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| Goldfish lose their color if they are kept in dim light or are placed in a body of running water, such as a stream. |
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| Goldfish remember better in cold water than warm water. |
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| Over 90% of all fish caught are caught in the northern hemisphere. |
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| Some species of fish have voices! |
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| The lifespan of the common goldfish is over 20 years! |
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| The lungfish can live out of water for three years in a state of suspended animation. |
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