Why trees don’t walk

Let us remember why trees don’t walk !
Article published in September 2013:

Trees produce oxygen and need lots of water to accomplish this task. They act as a lab, that processes a chemical reaction (photosynthesis), where the input substances are carbon dioxide and water and the output substances are carbohydrate and oxygen.

In order to have plenty of water, their roots are below the earth, where they get the necessary amount of water. This make them different from animals (and from us, humans), those who do not produce oxygen. Since we need less water than trees, we don’t need to be always attached to the earth. We are portable, we take in our body the water we need.