Do animals stay awake longer when it is sunny 24 hours a day?



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    A 2007 study by University of Iowa biologists actually found that animals exposed to 24-hour sunlight, such as that occurring during the summer in the Arctic Circle, still manage to keep their biological clocks on track. Scientists believe animals continue to function on a regular 24-hour schedule by noting the position of the sun throughout the day to time their eating, sleeping, etc. despite the lack of night-time to cue certain behaviors.

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