To further enable these measurements, we developed a laser fluorination method to reproducibly measure the triple oxygen isotope composition of silica frustules. While the δ13C of the organic matter ...

Stable isotope analysis could offer a new tool in the fight against wildlife poaching by helping differentiate legal mammoth ...

Teeth can tell a life’s story, even when they’re 150 million years old. One of the new frontiers in paleontological research ...

Demand for the ornaments, jewelry, and other luxury items carved from the ivory in elephant tusks has led poachers to ...

A new tool to detect elephant tusks disguised as legal mammoth ivory has been deployed in the battle against poaching. Stable ...

The team looked in the dead zones for signs of denitrification, which occurs when oxygen content is so low that microbes instead use nitrate to power their biological activity. Nitrogen has two stable ...

New research from the University of California, Davis, the Chinese Academy of Sciences and Texas A&M University reveals that ...

Scientists have used clues locked into tree rings to reveal major changes in the Amazon's rainfall cycle over the last 40 years: wet seasons are getting wetter and dry seasons drier.

Learn more about a sequence of increases in the carbon dioxide in our ancient atmosphere, which can tell us about our oceans’ ...

Ancient carbon surges depleted ocean oxygen and stalled marine life, and new research warns today’s emissions could cause a ...