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Tree heavingI was always interested in nature. Herešs a mystery: How can the roots of a pine tree heave (raise up) such a heavy stone? |
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Tree heavingI was always interested in nature. Herešs a mystery: How can the roots of a pine tree heave (raise up) such a heavy stone? |
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photo by Howdy Howard, published in Saved by Bedbugs (2004) |
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