Sentences with phrase «in earlier migrations»

Their numbers might have swamped human populations that arrived in earlier migrations.
This pattern suggests that goats followed humans in their early migrations.

Not exact matches

Signs of this mysterious early migration remained in the DNA of the Neanderthal who left the leg bone behind, revealing not only a previous tryst between the two hominin populations, but a sign that Neanderthals were far more diverse than we thought.
European Union leaders have agreed on a common position to put to Turkish Prime Minister Ahmet Davutoglu in a bid to curb the migration crisis, Luxembourg's premier said at a Brussels summit early Friday morning.
The discovery changes the history of early human migration and suggests archaic humans were present in the region long before than previously thought.
Though possessing many common cultural traits found also in Europe and the West, the much closer similarities between the cultures of Iran or Persia and India have led scholars to distinguish an Indo - Iranian branch of the larger whole as having early separated itself from the central or original Aryan migration, perhaps moving eastward from the, as yet, not certainly located origin of the Aryan group.
In early spring he took off by plane in advance of their migration and intercepted them along the Platte River in NebraskIn early spring he took off by plane in advance of their migration and intercepted them along the Platte River in Nebraskin advance of their migration and intercepted them along the Platte River in Nebraskin Nebraska.
Journey of a Lifetime shares the stories of the people, places and triumphs involved in the westward migration of the early 20th century — the largest wave of immigration in Canadian history.
However, for a large number of people at an earlier point in time, flight or migration seemed the better of these two options.
Net migration turned negative in the early 1990s due to high unemployment but gradually increased through the decade as job opportunities improved.
But the figures are still down on the levels of net migration reached in the early days of the coalition - revised ONS figures suggest it reached 263,000 in the year to September 2011.
The Nature team concludes it came in one of two early waves of migration into the continent, whereas the Science team concludes it came much later, and was unrelated to the initial peopling.
All non-Africans stem from one major founding population, the studies agree, but earlier human migrations are also recorded in present - day people's DNA, one study finds.
Killary and colleagues earlier identified a cluster of genes involved in cancer migration and then analyzed the proteins produced by those genes.
In Asia and Europe they would encounter populations of hominid species from earlier migrations that had evolved their own differences.
Adding two blood - borne proteins associated with cancer cell migration increases the predictive ability of the current biomarker for pancreatic cancer to detect early stage disease, a research team from The University of Texas MD Anderson Cancer Center reports in the Journal of the National Cancer Institute.
But the tantalizing discoveries of 100,000 - year - old stone tools found in the mountains of Oman and decidedly human fossils in the Israeli Levant dating to 177,000 to 194,000 years ago forced anthropologists to consider the possibility of earlier migrations.
Though the earlier JSATS tag provided a very detailed picture of fish migration, researchers worried that the mere presence of their tag — which was about three times heavier in 2007 than today's injectable tag — could alter fish behavior and make tag - gathered data less reliable for small fish.
Seasonality of bird migration is shifting in response to climate change and, as a result, birds are arriving at their northern breeding grounds earlier in the spring.
Overall, the study's data from mitochondrial DNA — different from nuclear DNA in that it helps scientists trace maternal lineages — reveal that population structure in humpback whales is largely driven by female whales that return annually to the same breeding grounds and by the early experience of calves that accompany their mothers on their first round - trip migration to the feeding grounds.
He points out that if there was only one initial migration it must have occurred very early to give the population time to split in two and the two groups to develop radically different tools.
Those sharks that do not become successful in learning how to catch prey quickly may starve as a result, which would partially explain the early migration of this juvenile female to off - shore waters for richer food.
One of the continent's earliest explorers, James Clark Ross — the Englishman who discovered the Ross Ice Shelf — remarked on the stirring sight of Adélies arcing in and out of the water during the migration to their home colonies.
«Ice age bison fossils shed light on early human migrations in North America: Study dates the first movements of bison through an ice - free corridor that opened between the ice sheets after the last glacial maximum.»
In the last 10,000 years, house sparrows accompanied early farmers on migrations into Europe.
After spending a relatively leisurely winter and early spring luxuriating in warm tropical climates, they migrate north for a brief but highly eventful summer in North America, during which they must complete three energetically demanding and time - consuming tasks: (1) they must build nests, lay eggs, and provide for their offspring until the young reach independence, (2) they must completely replace all the feathers in their plumage as part of the annual molt, and (3) they must prepare for the fall southward migration by eating prodigiously and storing the body fat that will fuel their long - distance flights.
The findings, which were announced during the 2018 AAAS Annual Meeting in Austin, Texas, have implications for understanding the region's history of migration, land use and conservation and even early climate changes, participants said.
The high «genetic continuity» in East Asia is in stark contrast to most of Western Europe, where sustained migrations of early farmers from the Levant overwhelmed hunter - gatherer populations.
Theoretical models predict that migration occurs either early in the lives of giant planets while still embedded within the protoplanetary disk, or else much later, once multiple planets are formed and interact, flinging some of them into the immediate vicinity of their star.
Instead, it makes an RNA molecule that is present during early in utero brain development and may orchestrate the migration of cells that build the human brain.
A year earlier, the team had tagged golden - winged warblers (Vermivora chrysoptera, pictured) with leg trackers in order to study their annual migrations to South America.
«This shows how important the Gulf coast is early on in the migration,» says Kelling.
This suggests there was a coastal migration route that required some kind of seafaring facility, says Silvia Gonzalez of Liverpool John Moores University in the UK, who investigates early human footprints in the Americas.
Using ancient and modern genome - wide data, we find that the ancestors of all present - day Native Americans, including Athabascans and Amerindians, entered the Americas as a single migration wave from Siberia no earlier than 23 thousand years ago (KYA), and after no more than 8,000 - year isolation period in Beringia.
His and others» discoveries of early stone tools in India and Arabia suggest that moderns did expand out of Africa during the early migration windows.
In «Linguistic Perspectives on Early Population Migrations and Language Contact in the Americas,» Sicoli shows how big data analyses point to the existence of at least three now - extinct languages of earlier migrations that influenced existing Dene and Aleut languages as they moved to the Alaska coasIn «Linguistic Perspectives on Early Population Migrations and Language Contact in the Americas,» Sicoli shows how big data analyses point to the existence of at least three now - extinct languages of earlier migrations that influenced existing Dene and Aleut languages as they moved to the AlaMigrations and Language Contact in the Americas,» Sicoli shows how big data analyses point to the existence of at least three now - extinct languages of earlier migrations that influenced existing Dene and Aleut languages as they moved to the Alaska coasin the Americas,» Sicoli shows how big data analyses point to the existence of at least three now - extinct languages of earlier migrations that influenced existing Dene and Aleut languages as they moved to the Alamigrations that influenced existing Dene and Aleut languages as they moved to the Alaska coast.
Various models show a family of small planets thrown outwards early in their development, probably by the migration of Neptune.
This information was compared for monarchs that were captured early against those captured late in the migration.
The researchers analyzed migration data collected intermittently from two different periods — referred to in the paper as «early» and «late» — for two beluga populations, covering the years 1993 - 2002 and 2004 - 2012.
But can we really infer such an early, out - of - Africa migration on the basis of a handful of bones from one site in Indonesia?
Early in his career, he discovered that previously enigmatic support cells, known as radial glia, serve as guides for the migration of cortical neurons in the developing brain, and showed how this process is critical for the organization of the multi-layered structure of the cerebral cortex.
This paper has important implications in understanding early human migrations.
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.
This is because genetic patterns in Turkey and the Middle East were re-shaped by migrations from surrounding areas after the Early Neolithic.
Listen to the Nature Podcast in which study author María Martinón - Torres explains how the ancient teeth challenge ideas of early human migration here.
More specifically the scientists provide the first genetic evidence of a scenario in which early modern humans left the African continent and mixed with archaic (now - extinct) members of the human family prior to the migration «out of Africa» of the ancestors of present - day non-Africans, less than 65,000 years ago.
The unmixed Hinxton group, versus the mixing of the Oakington population, shows that early medieval migration took a variety of forms and that these migrants integrated with the incumbent population in different ways.
− It is thrilling to investigate what has happened in our early history, a time for which we have no written material to rely on, and how we can explain todays genetic patterns based on population history and migration.
We present whole - genome sequences of 10 ancient samples from archaeological excavations in East England, which date to the late Iron Age and to the early and middle Anglo - Saxon periods and hence let us directly observe and quantify the genetic impact of the Anglo - Saxon migrations in England.
On December 1, 2009, two astronomers submitted a pre-print suggesting that the planet's extreme axial tilt (an obliquity of 97 degrees) may have resulted from the presence of a large moon that has since been ejected from orbit around the ice giant by the pull of another planet during the orbital migration of the giant planets early in the formation of the Solar System.
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