WASHINGTON — Early humans were regularly using animal bones to make cutting tools 1.5 million years ago. A newly discovered cache of 27 carved and sharpened bones from elephants and hippos found in ...

A team of researchers from the Cleveland Museum of Natural History and Kent State University propose a revolutionary hypothesis about the origin of stone tools: Early humans first used naturally sharp ...

Flowing into thousands of villages, the muddy flood waters fully submerged and desecrated hundreds of thousands of acres of crops. Bodies of drowned cattle littered the ground. Only skeletons remained ...

Archaeologists have unearthed mysterious 400,000-year-old artifacts made from mammoth tusks that may be the oldest human-made ivory objects ever found. They describe their findings in a recent paper ...

Researchers have discovered that keratin, the protein found in hair, can naturally rebuild and protect tooth enamel.