Tracing the regional origin of everything from milk to invasive bugs is now possible thanks to a new project. A strontium isotope map means biological material can be pinpointed to distinct ...

Tracing the regional origin of everything from milk to invasive bugs is now possible thanks to a University of Otago project. A strontium isotope map developed by PhD Candidate Robyn Kramer, and ...

Archaeologists at UC Santa Cruz used predictive modeling to map strontium isotope ratios across all of modern-day Angola, a region in Southwest Africa that was once a major hub for the transatlantic ...

The eastern North American population of monarch butterflies are famous for their annual, multi-generational, round-trip migration from the oyamel fir forests of Central Mexico through the United ...

A team of researchers led by UC Santa Cruz recently released a sophisticated new map that reveals, for the first time, the unique “geologic fingerprints” for most of the African continent. The map ...

An “isoscape”, or map showing the ratio between heavy and light isotopes over the landscape, for strontium isotope ratios. This isoscape was built from strontium isotope ratios analyzed in plants ...