The scientific study of trees, including their identification, classification, structure, distribution, and ecology.
From Greek 'dendron' (tree) + 'logia' (study of). This scientific discipline was formally named in the 18th-19th centuries as botany became more specialized.
Dendrology revealed that the oldest living things on Earth are bristlecone pines over 5,000 years old—older than the Egyptian pyramids and holding climate secrets in their rings!
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