This article predates the current owners of Science Blog. It has not been reviewed under the current editorial process and is kept as part of the archive. A blue ring formed in 1902 in a tree in ...

Deep in the world's oldest forests, towering giants have been keeping detailed records for centuries. These ancient trees are far more than passive observers of time. Trees act as time capsules. The ...

In a recently published paper, PhD student Ellen Waddle and her coauthors provide some clarity on a decades-old problem When researching what drives the growth of small populations, ecologists ...