Play NOVA's Evolution Lab to explore the tree of life and become an expert in phylogenetics—the study of the evolutionary relationships among species. Receive emails about upcoming NOVA programs and ...

In the middle of the exhibit hall at the University of Arizona’s Laboratory of Tree-Ring Research stands a 4,000-pound sample of a Giant Sequoia that began its growth in 212 A.D. and fell in 1915. The ...

Ever wonder how old trees can get? What if I told you that I know a tree that was over 2,000 years old and weighed more than 4,000 pounds? Where is this tree located, and why is that important? Find ...

TJ has spent a little over 8 years in and out of the writing/editing game. She spent most of that time ghostwriting and proofreading fictional pieces. These days she can be found writing with a cat at ...

Trees transform our villages, workplaces, and homes, making them more vibrant and inviting. Each tree has a story to tell, deeply rooted in the community it embodies. Today, I want to highlight the ...

The University of Arizona's "tree-ringers" are celebrating their move this weekend from "temporary" headquarters in the bowels of Arizona Stadium to a light-filled aerie above the stolid brick of the ...