http://www.bbc.com/travel/story/20151207...king-trees
“As the soil erodes, the tree grows new, long roots that find new and more solid ground, sometimes up to 20m,†said Peter Vrsansky, a palaeobiologist from the Earth Science Institute of the Slovak Academy of Sciences Bratislava. “Then, slowly, as the roots settle in the new soil and the tree bends patiently toward the new roots, the old roots slowly lift into the air. The whole process for the tree to relocate to a new place with better sunlight and more solid ground can take a couple of years.â€
“As the soil erodes, the tree grows new, long roots that find new and more solid ground, sometimes up to 20m,†said Peter Vrsansky, a palaeobiologist from the Earth Science Institute of the Slovak Academy of Sciences Bratislava. “Then, slowly, as the roots settle in the new soil and the tree bends patiently toward the new roots, the old roots slowly lift into the air. The whole process for the tree to relocate to a new place with better sunlight and more solid ground can take a couple of years.â€