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Archaeologists found traces of animal fats inside ancient clay vessels, giving a rare insight into the diets of Bronze and Iron Age infants.
Ancient North American hunter-gatherers had direct contacts with people living halfway across the continent, researchers say.
A newly described Denisovan finger fossil holds a skeletal surprise, adding to the mystery of this extinct Stone Age crowd.
Sharp stone points dating to as early as around 16,500 years ago at an Idaho site resemble those from around the same time in Japan, researchers say.