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Directional changes in ocean currents affect marine life because sea creatures often migrate using the currents. When the currents shift, it becomes more difficult for the sea creatures to find their way back.

Also, ocean currents carry tiny plankton and other small organisms that sea creatures eat. Ocean currents can either take away these plankton, or bring many more in, depending on which way the current is going.

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Q: How can a directional change in an ocean current affect marine life?
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