Sentences with phrase «early human groups»

Researchers found that some early human groups likely developed lighter tools and engaged in trade earlier than previously believed.

As a result, large swaths of sub-Saharan Africa would fall into drought, the study says, while southeast Africa became warmer, wetter and more humid, transforming into prime real estate for early human groups.

Modern hunter - gatherer societies typically have territories of 12 to 25 miles in diameter, and researchers believe early human groups had similar ranges.

Not exact matches

Earlier announcements by the Shi'ite militias that they will be involved in the offensive on Mosul, Islamic State's last major stronghold in Iraq, triggered warnings from human rights groups of sectarian violence in the mainly Sunni province.

Donna Brazelton, in her early 60s and also with the Osborne Group, retired as vice-president of human resources from a major transportation company eight years ago.

All that we can say with confidence, however, is that our earliest knowledge of humankind takes us back only to the point where humans were already scattered into groups, living a tribal existence, each with its own language and culture.

These communication tools reflect earlier principles of group dynamics and the human potential movement.

Earlier this year, a group of leading evangelicals released a proclamation of sorts, saying global warming is real, is caused by humans and needs to be brought under control.

Her doctor was shocked but said that since humans are still evolving her early development may be more normal than we think research is only limited to certain group studies.She just turned 6 months on 7/25/14 and she is now completely pulling herself up on furniture and has taken her first few steps without support.

I look at history, and think that for most of history, in most human groups, children stayed with their mother continuously through early childhood.

The video series, which was organized by the advocacy group Human Rights Campaign, is intended to rally support for a possible legislative effort to legalize same - sex marriage in New York, according to an earlier statement from the group.

The speaker won early endorsements from the Empire State Pride Agenda, the Human Rights Campaign, and the Gay and Lesbian Victory Fund, a Washington - based group that works to elect out LGBT candidates.

If you follow the evolution of human society per the theory of the early philosophers: Hobbes, Locke and Rousseau; it is posited that when humans decided to move from a state of survival of the fittest in which they roamed in the bush mainly in small family groups and decided to settle in larger societal groups, they needed rules and regulations to order society.

By the mid 1990s, these groups had collected 19.000 case reports detailing human rights violations between the late 1950s and early 1990s.

«The initial dispersals out of Africa prior to 60,000 years ago were likely by small groups of foragers, and at least some of these early dispersals left low - level genetic traces in modern human populations.

While fossil records prove that some anatomically modern human groups reached the Levantine corridor (the modern Middle East) as early as 100,000 years ago, genetic testing indicates that human populations inhabiting the globe today descended from a single group that migrated from Africa only 70,000 years ago — an unexplained gap of 30,000 years.

Some of the researchers at the centre will study the differentiation of stem cells into other cell types, one group by using human embryonic stem cell biology and another by studying early embryo development.

In earlier work, Stevens and his co-workers altered the equivalent amino acids in H5N1 that Tumpey's group did for 1918 flu, but the virus failed to acquire a preference for the human upper airway receptor.

The more strongly we identify with a particular group, the more vehemently we defend its members and ideals — a trait that experts think evolved along with early human society.

If these groups are truly representative of early humans, then menopause could be at least as old as our species.

The first person in each group was taught by archaeologists how to make artifacts called Oldowan tools, which include fairly simple stone flakes that were manufactured by early humans beginning about 2.5 million years ago.

Instead, small groups of African H. sapiens continually traveled into Arabia and beyond starting nearly 100,000 years ago or earlier, suggests Martinόn - Torres, who directs the National Research Center on Human Evolution in Burgos, Spain.

Pääbo, for his part, says that now that his team has shown that early modern humans interbred with one archaic group, he thinks other archaic humans might have passed along genes to us through interbreeding.

As early humans expanded beyond hunter - gatherer groups, religion was the glue that held societies full of strangers together, says Ara Norenzayan

The paper not only seemed to validate the group's claim a year earlier that it had created a single cell line from a cloned human embryo, but it also reported a huge increase in efficiency for the technique.

Groups related to modern humans — including Homo erectus and the Neanderthals — trekked out of Africa considerably earlier, but the new analysis suggests they did so naked.

The multinational research group utilized a model system where human retinal pigment epithelial cells were infected with Zika virus strain they isolated earlier from fetal brain [T1].

«Many of these hominids may have been part of some widely distributed group of early humans that were not separate lineages,» he says.

It is the earliest group to diverge from all other modern humans ever identified (Genome Biology and Evolution, doi.org/v59).

In a major breakthrough earlier this year, Kajimura's group showed for the first time that brown fat in adult humans consists primarily of so - called «beige fat,» which can transform from white to brown in cold conditions.

Lab - based experiments can also help answer important questions about early human development and the development of sperm and eggs cells, says Robin Lovell - Badge, a developmental biologist at the Francis Crick Institute in London and a member of the Hinxton Group steering committee.

In previous studies, the same group along with others had demonstrated that microRNAs (miRNAs) produced by eukaryotic cells and viruses are present in human blood in highly stable, cell - free forms and these so called circulating miRNAs can serve as non-invasive biomarkers for the early diagnosis of various diseases, including viral diseases.

She wanted to get a sense of how dogs may have aided early humans in taking down game, so she did her best to approximate the activity: In 2011, she joined a group of Japanese businessmen on a wild boar hunt in a dense forest near Hiroshima.

The body dimensions used in the model — 30 kg for females, 55 kg for males — were based on a group of early human ancestors, or hominins, such as Australopithicus afarensis, the species that includes the famous Ethiopian fossil «Lucy.»

Two studies presented at the Biology of Genomes meeting in Cold Spring Harbor, New York, last week show how human genomes have changed over centuries or decades, charting how since Roman times the British have evolved to be taller and fairer, and how just in the last generation a gene that favors cigarette smoking led to early death in some groups.

He might have been speaking for the Boskops, an almost forgotten group of early humans who lived in southern Africa between 30,000 and 10,000 years ago.

Earlier this year, 20 Brazilian scientific societies, including the Brazilian Society for the Advancement of Science and the Brazilian Anthropology Association, wrote to Brazilian President Dilma Rousseff opposing the dam, saying it would violate the human rights of indigenous groups.

It does not follow that we need to imagine that morality took its start from a desperate attempt to form a social union from selfish individualists: «far from being originally solitary, the earliest human beings were heirs to a long, complex tradition of group life».

Research by a University of Southampton archaeologist suggests that early humans, who lived thousands of years before Neanderthals, were able to work together in groups to hunt and slaughter animals as large as the prehistoric elephant.

Now, subtle traces of volcanic ash at Pinnacle Point, a famous archaeological site on the southern coast of South Africa, suggest that at least some groups of early humans survived, and even thrived, in the eruption's aftermath.

Analyzing 379 new genomes from 125 populations worldwide, the group concludes that at least 2 % of the genomes of people from Papua New Guinea comes from an early dispersal of modern humans, who left Africa perhaps 120,000 years ago.

The commission abandoned the benchmark earlier this year, but a coastal development group whose chairman rejects human - related climate change pressed for legislation to inhibit similar standards in the future.

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.

Unlike early human hunter - gatherer groups, Neanderthals concentrated almost entirely on hunting big game, as evidenced by the abundance of large animal bones in Neanderthal archaeological sites.

The last common ancestor of sharks and bony fishes probably didn't have gill arches arranged like those in modern sharks — which, in turn, suggests that the oldest known species of bony fishes can likely provide more information about the earliest jawed vertebrates (a group that today includes humans) than early chondrichthyans can, the researchers contend.

«I think early modern humans viewed Neanderthals as a different group, as «the other,»» he says.

The discovery is the first evidence that an even earlier group of proto - humans may have had the thinking abilities needed to figure out how to make sharp - edged tools.

The trait most likely developed 4800 to 6600 years ago from an earlier variant differing at just two base pairs that these groups got from intermixing with tribes migrating from the Asian Steppes, the team reported here last week at the annual meeting of the American Society of Human Genetics.

One group is believed to represent early, fully modern humans (Homo sapiens), our immediate evolutionary ancestors.

«This is the first instance I am aware of where an academic drug discovery group moved a molecule designed to hopefully treat a chronic brain disorder all the way from early discovery to human trials without there being, at some point along the way, a pharmaceutical partner,» said P. Jeffrey Conn, Ph.D., Lee E. Limbird Professor of Pharmacology in the Vanderbilt University School of Medicine and director of the Vanderbilt Center for Neuroscience Drug Discovery (VCNDD).