A tree's hard outer bark helps it survive. Studying why it's thicker on some trees than others could help scientists understand how to protect them.
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Bark - ダッフルコート
BARK - ダッフルコート
Forests, Free Full-Text
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The Basics Of Tree Bark Arborist Now, 48% OFF
Bark - ダッフルコート
The Basics Of Tree Bark Arborist Now, 48% OFF
Bark - 毛皮/ファーコート