| 21. | The European species " Euphyia unangulata " was previously thought to be Holarctic.
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| 22. | It has a Holarctic distribution and is present in Europe, Asia and North America.
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| 23. | The best known species is " Scytodes thoracica " which has a holarctic distribution.
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| 24. | It contains a list of 1, 921 bird species recorded from the Holarctic zoogeographic region.
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| 25. | The distribution of Byturinae is holarctic.
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| 26. | It is found in the Holarctic.
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| 27. | The family is holarctic in distribution.
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| 28. | Distribution is Northern Hemisphere and holarctic.
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| 29. | The two realms are sometimes included in a single "'Holarctic "'realm.
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| 30. | Fighting habitat fragmentation is a major challenge in conserving the wide-ranging species of the Holarctic.
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