Why are mimosa shy? Where does it grow? Say it briefly!

Mimosa is shy because it has bioelectricity in its body. Its hometown is Brazil in tropical South America, where there are often strong winds and heavy rains. Whenever the first drop of rain hits the leaves, it immediately closes the leaves and hangs down the petiole to avoid the damage of the storm. This is an adaptation to changes in external environmental conditions. In addition, the movement of mimosa can also be regarded as a way of self-defense. When the animal touched it lightly, it closed the leaves, and the animal dared not eat any more.