Sheaths also swell as a result of being dirty.. Horses with large beans (accumulations of secretions at the end of the penis) and large accumulations of sheath smegma (normal pasty secretion) often swell. Horses that urinate into their sheaths tend to have dirtier sheaths and more problems with swelling.
Some people think Alaska has less sunlight than other places. The opposite is true. Averaged over an entire year, Alaska gets 10-17 minutes more daylight per day than the rest of the country. If you include civil twilight, Alaska gets 40 minutes more light on average than the rest of the country.
From the start to the end of the month, the length of the day increases by 1:05 hours, implying an average day-over-day increase of 2.1 minutes. The shortest day of the month is March 1 with 11:28 hours of daylight; the longest day is March 31 with 12:34 hours of daylight.