Add Yahoo as a preferred source to see more of our stories on Google. Alysson Muotri, Ph.D. Lead exposure shaped human evolution, influencing brain development and the rise of language. (CREDIT: Kyle ...

The oldest hominin fossils outside of Africa hail from Dmanisi in Georgia, yet the debate over which human species these ancient remains belong to is far from settled. Dated to around 1.85 million ...

Dazzling new scientific techniques are allowing anthropologists to track the movements and menus of extinct hominids through the seasons and years as they ate their way across the African landscape, ...

Fossilized human teeth spanning two million years of evolution were studied for lead content, which was surprisingly high. To see the effect of lead on the human brain then and now, researchers ...

UC San Diego researchers have found high levels of lead in the teeth of both Neanderthals (left) and modern humans (right). However, a gene mutation may have protected modern human brains, allowing ...

Long before factories, mines, and cars filled the air with pollution, our distant ancestors were already living with a silent toxin: lead. A groundbreaking study reveals that hominids — from early ...