Fireflies are really flying ____ that flash light to attract mates.
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beetles
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Cicadas are true bugs, whereas ____ are grasshoppers.
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caribou
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White mulberry leaves are a favorite food for ____.
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koalas
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Mammoths, elephants, and ____ have large teeth called tusks.
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locusts
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Most common ____ breed on or near Iceland.
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penguins
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Lichen is a major food source for ____.
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puffins
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Ostriches, emus, rheas, kiwis, and ____ are flightless birds.
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silkworms
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Female kangaroos and ____ carry their young in a pouch.
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walruses
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