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november full moon
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<blockquote data-quote="BSK" data-source="post: 3341921" data-attributes="member: 17"><p>Jaahspike,</p><p></p><p>Biological processes that are timed to a specific date or range of dates are usually triggered by hormones produced by the pituitary gland and other functions linked to the hypothalamus. An animal's brain has the ability to track the length of the nights throughout the year. The length of the nights on a given date is almost exactly the same--to the minute--every year. In essence, the hours and minutes of darkness on Nov. 10th is exactly the same every year. The nights are shortest around June 21 every year, and the longest around Dec. 21 every year. But an animals brain can so precisely track these minutes of darkness each night that this acts as a highly accurate calendar. For biological processes like estrus in female deer, as soon as their brain records a specific night-time length (a given date of the year) their hypothalamus triggers their pituitary gland to begin producing the hormones associated with breeding.</p><p></p><p>So although deer can't read calendars, they don't need to. They have an automatic internal calendar built into their brains. And instead of months and numbered dates, their internal calendar uses the length of the days and nights to track the passage of time and the changing seasons.</p></blockquote><p></p>
[QUOTE="BSK, post: 3341921, member: 17"] Jaahspike, Biological processes that are timed to a specific date or range of dates are usually triggered by hormones produced by the pituitary gland and other functions linked to the hypothalamus. An animal's brain has the ability to track the length of the nights throughout the year. The length of the nights on a given date is almost exactly the same--to the minute--every year. In essence, the hours and minutes of darkness on Nov. 10th is exactly the same every year. The nights are shortest around June 21 every year, and the longest around Dec. 21 every year. But an animals brain can so precisely track these minutes of darkness each night that this acts as a highly accurate calendar. For biological processes like estrus in female deer, as soon as their brain records a specific night-time length (a given date of the year) their hypothalamus triggers their pituitary gland to begin producing the hormones associated with breeding. So although deer can't read calendars, they don't need to. They have an automatic internal calendar built into their brains. And instead of months and numbered dates, their internal calendar uses the length of the days and nights to track the passage of time and the changing seasons. [/QUOTE]
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