Breakthroughs in South American Prehistory and Robotic Technology

Recent discoveries include butchered bones suggesting the earliest human presence in South America 21,000 years ago, and a breakthrough by Japanese scientists who created a robotic face that can 'smile' with living skin. These findings could impact both our understanding of history and advancements in medicine and cosmetics.

Butchered animal bones found in Argentina suggest humans were present in southern South America 21,000 years ago, according to researchers, predating previous estimates. The fossil bones belonged to a massive armadillo relative, shedding light on pre-Ice Age human activity.

Meanwhile, Japanese scientists have achieved a remarkable feat by making robotic faces 'smile' using living skin tissue. This innovative development holds potential applications in the fields of cosmetics and medicine. Researchers at the University of Tokyo successfully grew human skin cells in the shape of a face and manipulated them to grin using ligament-like structures.

(With inputs from agencies.)