Sequoia is a special case though. They can afford to be so shallow because the live in families, and all the roots in the forest intertwine and they help each o

Sequoia is a special case though. They can afford to be so shallow because the live in families, and all the roots in the forest intertwine and they help each other stay upright. Other forests are not that intertwined. I only knew about that rule (mirror the branches) when it comes to oaks in particular. Other trees have evolved differently: palms will dig for water deep down for example.