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Great diving beetle larva
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Great diving beetle larva feeding on tadpole
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Great diving beetle larva
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Male great diving beetle pupa
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Great diving beetle portrait
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Great diving beetle, dorsal view
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Great diving beetle, lateral view
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Great diving beetle, ventral view
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Male great diving beetle
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Female great diving beetle
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Great diving beetle male and female
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Great diving beetle taking air at surface
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Great diving beetle and other water beetles clustered around an air bubble trapped beneath the ice of a frozen pond
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Great diving beetle burying itself in debris prior to hunting
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Great diving beetle attacking roach
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Female great diving beetle feeding on tadpole
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Great diving beetle feeding on worm
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Great diving beetles mating