Study finds evidence of 55 new chemicals in people

Scientists at UC San Francisco have detected 109 chemicals in a study of pregnant women, including 55 chemicals never before reported in people and 42 "mystery chemicals," whose sources and uses are unknown.

'Living fossil' may upend basic tenet of evolutionary theory

The field of evolutionary biology has seen its share of spirited debates. But if there's one principle that virtually every expert in the field agrees on, it's that natural selection occurs at the level of the genome.

Genetically tailored instruction improves songbird learning

Some recent research suggests that educational achievement can be predicted based on differences in our genes. But does this really mean that genes set limits on an individual's academic potential? Or do these findings just ...

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