What role do light cycles play in reproduction?

Cycles light play reproduction
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What role do light cycles play in reproduction?

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In many animals you can change or stop reproduction by playing with the light cycles. My *guess* is you would only see impact in tarantula mating if you put them in a constant state of high noon sunlight. Is calcium required for a proper diet? Vitamin D was reclassified as a hormone that is produced. Its manufacture begins with exposure of the skin to the ultraviolet B (UVB) rays of the sun. Tarantula feral behavior, lacking the necessity of the sunlight, demonstrates dietary supplement of vitamin D is not needed. Sources: Dietary Supplement Fact Sheet: Vitamin D, Office of Dietary Supplements, National Institutes of Health, August 12, 2008: http://ods.od.nih.gov/factsheets/vitamind.asp Dietary Supplement Fact Sheet: Calcium, Office of Dietary Supplements, National Institutes of Health, August 12, 2008: http://ods.od.nih.gov/factsheets/calcium.asp Chitin: Wikipedia, August 12, 2008: http://en.wikipedia.org/wiki/Chitin Carbohydrate: Wikipedia, August 12, 2008: http://en.wikipedia.org/wi

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