Animals

Which species best matches this description, "large, fast-swimming, fresh-water fish from North America"?

More Questions from Animals
What are the names of the only two egg-laying mammals in existence?
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What animal has a baby born at about one inch long and a name that means "I don't know"?
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Which animal is the only one with four true knees?
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What color is a cardinal?
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Which of these cats is also known by its scientific name "Neofelis nebulosa"?
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Which animal has horns?
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Which of these is a long-horned antelope from the dry areas in Africa and Asia?
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Which species best matches this description, "can slither on land, climb on trees, and swim on water"?
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