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 By the banks of a seasonal  

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By the banks of a seasonal riverbed in north-western Mexico, a collection of towering, gnarled oak trees stand guard. These trees descend from ancestors that lived more than 50 million years ago and their species has faced, and survived, any number of challenges.

อ่านต่อเพิ่มเติม โรงเรียนวัดเพ็ญญาติ

สาระสำคัญ สัตว์

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