Assessing the age of a living tree is straightforward enough ... and count the number of lines in the core formed by the tree's annual growth rings. (The rings of ancient bristlecone pines ...

By ALYSSA VAN DOORN The Outside Story The longer, warmer days of spring spark phenological changes in trees, from root to tip ...

Mercury concentrations in fig trees could provide useful information about mining activity in the rainforest over time ...

In the depths of a Chilean rainforest stands the 'Gran Abuelo,' an approximately 5,400-year-old tree fighting for survival. A ...

Tree ring widths, which reflect the dry or wet conditions affecting tree growth annually, provide valuable proxy climate data from before historical recordkeeping began. Rui Guo and colleagues ...

Well, tree-ring dating, or dendrochronology, can be this precise, and even more so. Dendrochronologists showed that an ancient wooden road uncovered in southwestern England not only was built in ...