Tree rings in the Amazon reveal intensifying rainfall extremes, with wetter wet seasons and drier dry seasons, reshaping ...

This expansion creates growth rings, also called tree rings. Though growth rings are often hidden from view, the emblematic bullseye pattern can be seen on stumps left behind after felling a tree, or ...

The concentric rings in the trunk, besides indicating the age of the tree, also shed light on the corresponding weather conditions during each year of the tree's life. But growth rings are not ...

As the rings grow each year, they help scientists like Griffin learn more about climate, drought and rain history. For the past 20 years, Griffin has worked in old-growth forests — forests that ...

It led her to team up with an Australian melodist and a Tucson dendrochronologist — a scientist who uses tree ring growth patterns to understand past variations in environmental conditions ...

Using a technique called synchrotron X-ray tomography to image growth rings in fossilized tooth roots, the researchers were able to estimate lifespans, growth rates, and even the timing of sexual ...

The cell walls of their new growth fail to lignify—the process of hardening and strengthening—leaving behind blue-stained rings when wood samples are dyed. By studying these blue rings ...

Black applied tree-ring techniques to marine life that, like trees, form growth rings, helping fill the gaps in climate records before humans tracked environmental conditions like ocean ...

This expansion creates growth rings, also called tree rings. Though growth rings are often hidden from view, the emblematic bullseye pattern can be seen on stumps left behind after felling a tree, or ...