Sentences with phrase «human migration over»

Human migration over the years has wiped out some strains, increasing the risk of certain diseases as a result, such as gastric cancer.

The article is about how specific genetic changes that either cause disease or protect against disease can help researchers trace human migrations over thousands of years.

Of course, given the extensive human migrations over the millennia, these findings are largely presumptive, and only provide limited information about a single line of ancestors on either parental line.

Not exact matches

Over the past four decades, China has seen the largest migration in human history.

The Genographic Project, launched in April 2005, is a five - year genetic anthropology study that aims to map historical human migration patterns by collecting and analyzing DNA samples from over 100,000 people across five continents.

A new study titled Body size downgrading of mammals over the late Quaternary, released Friday in the journal Science, is the first to quantitatively show that human effects on mammal body size predates their migration out of Africa and that size selective extinction is a hallmark of human activities and not the norm in mammal evolution.

These data were evaluated in light of climate change and human migration patterns over the same time frame.

According to the new work, the pathogen has infected humans for over 60,000 years and its genetic transformation over that time is remarkably similar to that of manmaking it a reasonable model for human migration and diversification.

He has analyzed genetic relationships among diverse groups of people and finds that today's humans show evidence of interbreeding among Homo erectus, Homo sapiens, and other early hominids over a wide span of time, from as far back as 1.5 million years ago until the last hypothesized global migration, around 80,000 years ago.

Axel Timmermann and Tobias Friedrich constructed a numerical model that quantifies the effects of past climate and sea - level change on global human migration patterns over the past 125,000 years.

Additionally, the findings also raise questions over why modern humans seemed to have reached Asia much before their migration to Europe, where the earliest such remains found are approximately 45,000 years old.

A new study, which was published in the journal Science on Dec. 8, suggests that new discoveries made over recent years show that modern humans may have originated from several migrations from Africa, which started as early as 120,000 years ago, or 60,000 years earlier than previous estimates.

The first whole - genome analyses of ancient human DNA from Southeast Asia reveal that there were at least three major waves of human migration into the region over the last 50,000 years.

It can even be useful for archaeologists who look at human migration routes, and are interested to see how the European environment developed over the last 20 000 years.»

This briefing launched the latest report from the Department for Business, Innovation and Skills» Foresight programme, examining how the profound changes in natural and human environments across the world will influence and interact with patterns of global migration over the next 50 years.