An Oregon State University study has found evidence that Indigenous groups in the Pacific Northwest were intentionally harvesting edible camas bulbs at optimal stages of the plant's maturation as far back as 3,500 years ago.

The findings contribute to the growing body of research around Traditional Ecological Knowledge and practices, demonstrating the care and specificity with which Indigenous groups have been stewarding and cultivating natural resources for millennia. The work is published in The Holocene journal.

Camas is an ecological and cultural keystone, meaning it is a species on which many other organisms depend and that it features prominently within many cultural practices.

"If you think about salmon as being a charismatic species that people are very familiar with, camas is kind of the plant equivalent," said Molly Carney, an assistant professor of anthropology in OSU's College of Liberal Arts and lead author on the study. "It is one of those species that really holds up greater ecosystems, a fundamental species which everything is related to."

A nearly 130,000-year-old bear bone was deliberately marked with cuts and might be one of the oldest art pieces in Eurasia crafted by the Neanderthals, researchers say.

The roughly cylindrical bone, which is about 4 inches long (10.6 centimeters), is adorned with 17 irregularly spaced parallel cuts. A right-handed person most likely crafted the piece, probably in one sitting, a new study finds.

The carved bone is the oldest known symbolic art made by Neanderthals in Europe north of the Carpathian Mountains. It gives scientists a glimpse into the behavior, cognition and culture of modern humans' long-dead cousins, who lived in Eurasia from about 400,000 to 40,000 years ago, when they disappeared.

Raquel Hernando, a Juan de la Cierva researcher associated with the European project TIED2TEETH, at the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), is the lead author of a paper published in the American Journal of Biological Anthropology, in which the teeth of 84 adult individuals found at eight sites in the northeast Iberian Peninsula were analyzed to offer new perspectives on the diet of these populations in recent prehistory.

This study shows that the mixed diet of the agropastoral groups of this period, which covers from the Middle Neolithic to the Middle Bronze Age, was made up of cereals with regular intake of meat or dairy products, though each group had its own dietary specialization.

A rare dye made from snails for the robes of the Roman elite almost 2,000 years ago has been unearthed at a cricket club.

The chunk of Tyrian purple, roughly the size of a ping pong ball, was dug up at Carlisle Cricket Club as part of ongoing yearly excavations.

A Roman bathhouse was discovered at the site in 2017 and in the last three years 2,000 items including pottery, weapons, coins and semi-precious stones have been found.

Flint is on mastodon: @[email protected]

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It has long been thought that meat played an important role in the diet of hunter-gatherers before the Neolithic transition. However, due to the scarcity of well-preserved human remains from Paleolithic sites, little information exists about the dietary habits of pre-agricultural human groups. A new study challenges this notion by presenting compelling isotopic evidence of a strong preference for plants among 15,000-year-old hunter-gatherers from Morocco. This is the first time a significant amount of plant consumption has been measured for a pre-agricultural population, shedding new light on the dietary practices of ancient human societies.

The emergence in the Neolithic of patrilineal social systems, in which children are affiliated with their father's lineage, may explain a spectacular decline in the genetic diversity of the Y chromosome observed worldwide between 3,000 and 5,000 years ago.

In a study published today in Nature Communications, a team of scientists from the CNRS, MNHN and Université Paris Cité suggest that these patrilineal organizations had a greater impact on the Y chromosome than mortality during conflict.

A trove of artifacts — including cannonballs and coins — were recently found among the ruins of a centuries-old fort on a Caribbean island.

The discoveries were made during an archaeological excavation of Fort Gustav, a historic military outpost perched atop a hill on Saint Barthelemy.

Constructed during the late 18th century, the fort was occupied at various times by the French and Swedish militaries.

The researchers turned to caves under Harrat Khaybar, a vast basalt plain pocked with volcanic craters in northwestern Saudi Arabia. The caves were made by lava as it flowed from nearby volcanoes, forming rocky tunnels as it cooled.

An excavation near the entrance of one cave produced more than 600 animal and human bones and 44 stone-tool fragments. The oldest stone tools dated back to as many as 10,000 years ago, and the oldest human bone fragments were almost 7,000 years old. The study was published on 17 April in PLoS ONE1.

The distribution of samples suggests that people did not live in the cave for long periods, but stayed there occasionally. Nearby rock art depicts people with goats and sheep. The drawings are difficult to date, but they support the fossil evidence that people used the cave as a place to rest and shelter their herds. Even today, farmers seek shade and water in underground lava tubes for themselves and their animals, says Stewart.