Sentences with phrase «ancient migration by»
«Most of the archaeological evidence for movement is based on artifacts, but artifacts can be stolen or copied, so they are not a real good proxy for actual human movement,» says archaeologist Doug Price of the University of Wisconsin in Madison, who tracks ancient migration by analyzing isotopes.
http://www.sciencemag.org/ Not exact matches
What isn't possible is a far more ancient migration — 20,000 years ago or more — suggested by some researchers.
Three ancient river systems, now buried, may have created viable routes for human migration across the Sahara to the Mediterranean region about 100,000 years ago, according to research published September 11 in the open access journal PLOS ONE by Tom Coulthard from the University of Hull, UK, and colleagues from other institutions.
Genetic studies such as this one may help anthropologists understand those migrations — and their timing — even better by giving them a genetic «clock» to use when studying today's humans, or potentially DNA extracted from ancient bones.
By comparing Ust» - Ishim's genome to various groups of modern and ancient humans, the researchers are filling in gaps in the map of initial human migrations around the globe.
The ancient boy's DNA was not affected by those migrations.
The boundaries of ancient valley walls are defined by textural and albedo changes and are also associated with lateral river migration.
By comparing the ancient genome to DNA from modern Africans, the team have been able to show that not only do East African populations today have as much as 25 % Eurasian ancestry from this event, but that African populations in all corners of the continent — from the far West to the South — have at least 5 % of their genome traceable to the Eurasian migration.
They then used this knowledge to reconstruct the ancient migrations of women by comparing variation in mtDNA among populations throughout the world.
The ancient Pueblo migrations may be an unfair analogy, but modern Western society, highly dependent on hydraulic engineering, is yet to be tested by the dreadful droughts we know can occur.
A photographer undertook an artistic and scientific odyssey that was inspired by an ancient migration now imperiled by human encroachment.