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Tracing the spread of cacao domestication

The cacao tree (Theobroma cacao), whose beans (cocoa) are used to make products including chocolate, liquor and cocoa butter, may have spread from the Amazon basin to the other regions of South and Central America at least ...

Researchers demonstrate control of living cells with electronics

E. coli bacteria and an electronic device might seem to have little in common, but in a recent experiment, University of Maryland researchers linked them into the first closed-loop system able to communicate across the technological–biological ...

Modeling the origins of life: New evidence for an 'RNA World'

Charles Darwin described evolution as "descent with modification." Genetic information in the form of DNA sequences is copied and passed down from one generation to the next. But this process must also be somewhat flexible, ...

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