Sentences with phrase «prehistoric human populations»

Analyses of genome - wide data from 51 Eurasians from 7,000 — 45,000 years ago reveal two big changes in prehistoric human populations that are closely...

Prehistoric human populations of hunter - gatherers in the region that is now Wyoming and Colorado grew at the same rate as farming societies in Europe, according to a new radiocarbon analysis involving University of Wyoming researchers.

Prehistoric human populations of hunter - gatherers in a region of North America grew at the same rate as farming societies in Europe, according to a new radiocarbon analysis involving researchers from the University of Wyoming and the Harvard - Smithsonian Center for Astrophysics.

While the world's human population currently grows at an average rate of 1 percent per year, earlier research has shown that long - term growth of the prehistoric human population beginning at the end of the Ice Age was just 0.04 percent annually.

Not exact matches

Analysing the ways that mitochondrial DNA sequences differ across a large number of living people has helped to establish prehistoric population trends, but this record stretches back only 200,000 years to the point where all humans alive today shared a common female ancestor.

Prehistoric Europe was a dynamic place where human populations would rise to dominance, get swept aside by others and then rise again years later, and a new genetic analysis shows what happened

«This similarity in growth rates suggests that prehistoric humans effectively adapted to their surroundings such that region - specific environmental pressure was not the primary mechanism regulating long - term population growth.»

The skull was the fifth unearthed at a fossil - rich prehistoric watering hole in Dmanisi, Georgia; together, the specimens provide a vivid picture of the population of human ancestors at that location and place in time — and the variation within it.

Since prehistoric times people have lived by the seas and rivers for the access to cheap and quick transportation and access to food sources and trade; without human populations near natural bodies of water, there would be no concern for floods.

The remnants of a remarkably petite skull belonging to one of the first human ancestors to walk on two legs have revealed the great physical diversity among these prehistoric populations.

This is consistent with recent findings that AMY2B copy number is highest in modern dog populations originating from geographic regions with prehistoric agrarian societies, and lowest from regions where humans did not rely on agriculture for subsistence34 and supports the claim that the expansion occurred after initial domestication (possibly after the migration of dingoes to Australia 3,500 — 5,000 years ago) 34.

Katmai National Park, Alaska Katmai National Park and Preserve has the world's largest brown bear population, the Valley of Ten Thousand Smokes, active volcanoes, the largest lake within the National park system and the highest concentration of prehistoric human dwellings in North America.