There is a nice example of gravitropism and phototropism in action in this picture.
The orientation of a plant or other organism in response to gravity.
The orientation of a plant or other organism in response to light, either toward the source of light (positive phototropism) or away from it (negative phototropism).
The wind has pushed the trees over, but the trees have survived. (Most trees do survive being blown over, even all the way down. All they need is for about 1/6th of the roots to survive intact and still in the ground.)
The trees have reacted to the new angles of gravity and light that they are experiencing. Compare the angle of the trunks near to the ground with higher up.
(South is to the right of the picture.)
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For a complete guide to Natural Navigation read Tristan’s books.