Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Trees depicted in ...

What makes a tree a tree? Or rather, why can we recognize trees in even quite abstract depictions when they are so varied in nature? Researchers have found a clue in the branches, and used math to ...

If you are looking for some beautiful tree inspired tats, here are some great ones. The Tree of Life holds a lot of symbolism in almost all cultures. It shows how the earth is linked to heaven and ...