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Penguins have feathers all over their bodies to______________________ .
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Penguins live in colonies called ________________ .
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The very large birds that have wingspans of up to 10 feet and fly over Antarctica are called ____________________________ .
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Baby seals are called _______________________ .
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Seals contain an enormous amount of blood which allows them to hold more dissolved oxygen and carbon dioxide so that they can ____________________________________ .
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Whales, dolphins and porpoises are not fish. Rather, they are___________________ .
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In the past, whales were hunted for the thick layer of blubber they possessed, which was used for ____________________ .
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Krill are important pieces of the Antarctic ecosystem because ____________________.
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An adult blue whale can eat up to ________ tons of krill a day.
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Plants rarely grow taller than ____________ inch in Antarctica.