Fun Facts About Fall
October 1, 2015
The cool, crisp days of autumn are approaching. As fall foliage creates a colorful display and kids frolic in leaf piles on the lawn, you may want to pay some mind to a few lesser known facts about this beloved time of year.
-Yellow, orange and variations thereof always reside in the pigmentation of tree leaves, but they are overpowered by the abundance of green from the chlorophyll in the leaves. Come autumn, when the sun weakens and days grow shorter, the amount of chlorophyll in leaves diminishes, allowing the other pigments in the leaves to show through.
- Red and purple leaves are actually caused by the presence of sugars from sap that is trapped inside of the leaves.
-Fall is a peak migration time for many species of birds. During autumn, birds will fly to other areas seeking more hospitable climates. The Arctic tern journeys about 11,000 miles each way for its annual migration. That is like going all the way across the United States about three and a half times.
-Autumn also signals another colorful spectacle apart from the tree leaves. The aurora borealis, also known as the Northern Lights, tends to be visible this time of year. This is because geomagnetic storms are about twice as likely to occur during the fall thanks to cool evening weather.
The Anchorage Activity Calendar for October is with fun events for everyone, from music to health and wellness to shopping. Click here to see what's in store for the month.