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The European eel is the runaway winner, covering up to 7500km (4660 miles) on the journey to its spawning grounds. That long, smooth muscular body helps it cover the miles. |
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The salmon is a worthy second place, also a long distance breeder covering up to 4830km (3000 miles). |
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The cichlid never goes out to sea, remaining in rivers and lakes. It can travel great distances, but nowhere near as far as the eel and salmon. |
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Sea horses are not powerful swimmers and don't venture far from home, swimming only short distances to court their mates and breed. |
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