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image: Coral Clocks

Coral Clocks

By | March 1, 2013

Uranium dating of coral tools used by the earliest settlers of the South Pacific island kingdom of Tonga offers unprecedented precision in reconstructing their history.

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image: You Are Where You Eat

You Are Where You Eat

By | July 1, 2012

Laser-based isotope detection systems are moving into the realm of food authentication.

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image: Warm-Blooded Dinos?

Warm-Blooded Dinos?

By | June 24, 2011

Evidence that large dinosaurs had body temperatures similar to modern-day mammals suggests they were either endothermic or extremely good at conserving body heat.

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image: UK scraps nationality DNA-testing

UK scraps nationality DNA-testing

By | June 20, 2011

The UK’s immigration agency has abandoned a program to develop DNA and isotope testing to assess the nationality of asylum seekers.

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