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101 Camping Out Ideas & Activities
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LOOKING AT TREE TRUNKS
The marks on tree trunks have a story to tell. You might find traces of a mouse feeding (Fig. 1); air holes made by a beetle or other insect (Fig. 2); vertical, scarred tears or frost rips caused as a result of strains in the trunk because of differences in temperature (Fig. 3); traces of a squirrel feeding (Fig. 4); traces of a rabbit feeding (Fig. 5).
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