Trees Have a Period of Reset
We’ve known for a while that trees are living things that, much like humans, deal with their own cycles of life. One aspect of our towering natural neighbor’s daily routine that we may have been overlooking for quite some time is a period of sleep come night fall. No, you won’t hear a tree snoring outside of your window, but scientists believe that, at the end of the day, when branches droop at night, the tree is entering a period of rest. Using infrared light to illuminate parts of two different trees, one in Finland and one in Austria, researchers came to find that during the night, leaves and branches changed position, dropping about 4 inches or 10 centimeters on a 16-foot or 5-meter tree. Even more intriguing is that some of the branches returned to their original position before the sun even rose, indicating a possible internal clock.