| 11. | Some animals are crepuscular mainly because their prey is.
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| 12. | These are not as easily spotted as crepuscular rays.
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| 13. | Mice are mostly crepuscular or nocturnal; they are averse to bright lights.
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| 14. | Most owls are nocturnal or crepuscular birds of prey.
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| 15. | Nile lechwe are crepuscular, active in the early morning and late afternoon.
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| 16. | This falcon is partly crepuscular, as the bats in its diet suggest.
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| 17. | They are somewhat crepuscular and more active at dusk and in overcast weather.
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| 18. | Crepuscular rays are parallel, but appear to diverge because of linear perspective.
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| 19. | They may be crepuscular, They usually hunt solitarily.
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| 20. | It is crepuscular, while other species are nocturnal.
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