Evolutionary biologists have long believed that the human-biting mosquito, Culex pipiens form molestus, evolved from the bird ...

Modern humans descended from not one, but at least two ancestral populations that drifted apart and later reconnected, long ...

When we think of lead poisoning, most of us imagine modern human-made pollution, paint, old pipes, or exhaust fumes.

Modern humans descended from not one, but at least two ancestral populations that drifted apart and later reconnected, long before modern humans spread across the globe. Using advanced analysis based ...

Long before factories, mines, and cars filled the air with pollution, our distant ancestors were already living with a silent ...

An international study changes the view that exposure to the toxic metal lead is largely a post-industrial phenomenon. The ...

Scientists found that ancient lead exposure shaped early human evolution. The toxin may have played a surprising role in the development of modern cognition and language. An international team of ...

When scientists found the skull, named Yunxian 2, they assumed it belonged to an earlier ancestor of ours, Homo erectus, the ...

For many decades, textbooks taught that hippos vanished from the center of Europe upon the onset of the Ice Age. However, a ...

Scientists at the Institut Pasteur and McMaster University have discovered that the evolution of a gene in the bacterium that causes bubonic plague, Yersinia pestis, may have prolonged the duration of ...