Shea Gunther is a writer, entrepreneur, and podcaster living in Portland, Maine. He covers topics such as renewable energy, climate change, and nature. Romanesco broccoli (which, despite its name, is ...

Piet Mondrian painted the same tree in "The gray tree" (left) and "Blooming apple tree" (right). Viewers can readily discern the tree in "The gray tree" with a branch diameter scaling exponent of 2.8.

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