| 11. | Shackleton led a terrifying sail across polar seas.
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| 12. | Moments after the Polar Sea turned back toward Alaska, the Russian boat opened fire on the fishing vessel.
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| 13. | Species in this genus are found in cold temperate and polar seas at depths ranging from to over.
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| 14. | Very little is known about their biology, though they are widely distributed in all oceans, except the polar seas.
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| 15. | The email was sent in August 1995 by Mike Powers, commander of the Coast Guard ice breaker Polar Sea.
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| 16. | "Polar Sea's " three shafts are each turned by either a two diesel-electric or one gas turbine power plants.
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| 17. | The survey's report went on to dismiss the entire concept of " gateways " and the warm polar sea.
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| 18. | In this Arctic village, beachfront real estate means a summer view of polar sea ice glinting a few miles offshore.
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| 19. | "' Cape Polar Sea "'is a rock cape that forms the west extremity of Coulman Island in northwest Ross Sea.
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| 20. | Researchers did confirm that many ( not all ) high latitude glaciers were receding, and polar sea ice seemed thinner.
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