Sentences with phrase «early migrations of»

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.

These antibodies are produced in response to early migration of L3 and L4 larvae.

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.

Here's why: When Blue Apron filed to go public earlier this year, it commissioned a study by research firm Euromonitor to track the migration of grocery store sales to online channels.

The discovery changes the history of early human migration and suggests archaic humans were present in the region long before than previously thought.

is a good one where the hotline can provide theories like the out of africa idea, the migration patterns of early humans, contrasting other religious faiths, rites and ceremonies are others.

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 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.

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.

Today, new tagging methods are quickly shedding light on what scientists once called the «lost years» — the early years of a sea turtle's life when their migration patterns were mostly unknown.

While it is widely accepted that the origins of modern humans date back some 200,000 years to Africa, there has been furious debate as to which model of early Homo sapiens migration most plausibly led to the population of the planet — and the eventual extinction of Neanderthals.

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.

Some have tried to reconcile these findings with the late - exodus narrative by claiming there may have been an early, but ultimately doomed, first wave migration out of Africa some 120,000 years ago, after which humans more or less stayed put on the continent for another 60,000 years.

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.

«Anthropology textbooks of the 1990s often showed maps with large arrows indicating migration of early H. erectus from its inferred core area of eastern Africa to other parts of the Old World,» explains Roebroeks.

Beyond that, we now have the evidence that reinforces earlier findings on the effects of ambient pollution at large and can say that these effects are very likely real, not just loosely correlated or tied up with other economic issues like household migration dynamics.»

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.

The timing of the migration has shifted: The whales are leaving their calving grounds earlier and coming back later.

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.

The «sunbathing» finding was an early result of a study to identify migration and breeding patterns.

The team started out by trying to pinpoint the origins and migrations of early Europeans.

Early on the morning of May 31st, near the end of the spring migration, I met up with Liz Johnson and Felicity Arengo from the American Museum of Natural History.

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.

An earlier project tracked the migration of the bar - tailed godwit from Alaska to New Zealand (bit.ly / ns - godwit).

The researchers found that due to warm spring temperatures on Kodiak, the berries were developing fruit weeks earlier, at the same time as the peak of the salmon migration; 2014 was one of the warmest years on the island since record - keeping began 60 years ago.

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.»

«We know that there are likely to have been at least two admixture events into the ancestors of present - day people — the shared event early during modern human migration out of Africa, and a second event into the ancestors of present - day Asians,» says Kelso.

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 work complicates the human story once again, much as the discovery of the controversial H. floresiensis — a.k.a. the hobbit — has upset earlier and simpler views of early human migrations around the globe.

The ancient Mota genome allows researchers to jump to before another major African migration: the Bantu expansion, when speakers of an early Bantu language flowed out of West Africa and into central and southern areas around 3,000 years ago.

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.

Indeed, the evidence from Misliya is consistent with recent suggestions based on ancient DNA for an earlier migration, prior to 220,000 years ago, of modern humans out of Africa.

The discovery of a very young hot Jupiter thus confirms that early migration within the disk also applies to giant planets.

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.

Should this happen, the H. erectus idea would go down the drain, and we would be looking at a possibility of another, yet unknown, migration of humans out of Africa perhaps as early as 2 million years ago.

Tom Dillehay, an anthropologist at the University of Kentucky, says morphological anomalies don't necessarily prove there were earlier migrations: «They may indicate some genetic drift, or they could link to some parallel adaptations, or perhaps they resulted from interbreeding with other local populations.»

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.

A team of paloeanthropologists compared the skulls of several dozen Paleoamericans, which date back to the early days of migration 11,000 years ago, with those of more than 300 Amerindians, which date to 1000 years ago.

Reich questions that result, but says that his and Willerslev's studies can't rule out a contribution of only 1 % or 2 % from an earlier H. sapiens migration.

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 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 Alamigrations that influenced existing Dene and Aleut languages as they moved to the Alaska coast.