我们认为人类智慧无穷，动物也一样，但植物呢？
There's nothing better than a walk in the countryside for lifting our spirits. Connecting with nature has been proven to help our mental health. For some, the best tonic1 is to stroll through a forest, but as we admire the trees that surround us, it's worth knowing these trees are doing more than just being nice things to look at.
We're already aware of the healing properties of trees – they produce oxygen and clean the air we breathe by absorbing about a quarter of all human-caused carbon dioxide emissions2. Deforestation isn't helping3 with this which is why so many people want to save them. But there's more to these impressive forms of vegetation than we might think. Researchers have discovered evidence that proves they are actually intelligent.
It's thought that trees talk and share resources right under our feet, using a fungal network. Under the ground are tree roots, and mingling4 among them, along with bacteria, are thousands of superfine threads
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