The world's oldest Douglas fir trees have lived over 1,000 years
The Douglas fir, the state tree of Oregon, can grow incredibly tall and live impressively long. The oldest Douglas fir trees ...
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More than a third of all trees species at risk of extinction, global assessment finds
More than a third of all tree species worldwide face extinction, threatening ecosystems, plants, animals and economies around the world, experts warned Monday. In all, 38% of trees are at risk ...