Researchers found a hidden mathematical rule in tree-like art. Branch thickness follows a predictable ratio, making trees recognizable.

The Princess of Wales' younger brother, 37, delighted fans with a rare glimpse of his one-year-old son, Inigo, who he shares ...

Pocket Sketching with Kath Macaulay is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku ...

Their study analyzed three groups of trees over the last two decades. Scientists make astonishing discovery about how trees have memories — here's the one that helps them survive first appeared on The ...