Sentences with phrase «new human ancestor»

The scientists who discovered a new human ancestor and mapped a cave system that's serving up amazing fossil evidence are following in giant footsteps: those of Robert Broom, Raymond Dart and Phillip Tobias.

When paleobiologist Tim White of the University of California, Berkeley, and colleagues described a new human ancestor named Ardipithecus ramidus — or «Ardi» — they challenged many evolutionary assumptions.

Not exact matches

«A new finding has cast doubt on the theory that ancestors of modern humans interbred with Neanderthals over thousands of years.

Mar. 18, 2013 — Buried for 100,000 years at Xujiayao in the Nihewan Basin of northern China, the recovered skull pieces of an early human exhibit a now - rare congenital deformation that indicates inbreeding might well have been common among our ancestors, new research from the Chinese Academy of Sciences and Washington University in St. Louis suggests

The study also confirms that the «H1» hemagluttinin protein of the new virus derives from the classical swine H1N1 strain, which shares a close common ancestor with the human H1N1 strain circulating before 1957 and several lines of evidence show that older people exposed to that virus may have some immunity to the new H1N1.

A 13 - million - year - old infant's skull, discovered in Africa in 2014, comes from a new species of ape that may not be far removed from the common ancestor of living apes and humans.

A new study concludes that the art of conversation may have arisen early in human evolution, because it made it easier for our ancestors to teach each other how to make stone tools — a skill that was crucial for the spectacular success of our lineage.

For the first time, researchers describe a new type of human ancestor on the basis of DNA rather than anatomy

EASY RIDER Gut bacteria have been passed down from the ancestors of humans and African apes for millennia, evolving alongside their hosts, says a new study that looked at bacteria from gorillas, bonobos, chimpanzees and humans.

LAND LINK Paleobiologist Neil Shubin hosts the new PBS series Your Inner Fish, exploring humans» connections to animal ancestors.

Now, a University of Missouri researcher and her international team of colleagues have found a new hand bone from a human ancestor who roamed the earth in East Africa approximately 1.42 million years ago.

Researchers thought culturally transmitted behavior was limited to humans and chimpanzees, but the new study suggests that all great apes share a common ancestor that was multicultural.

Fossils of a human species new to science could be the direct ancestor of our genus, Homo.

A recent Baylor University research study has shed new light on the diet and food acquisition strategies of some the earliest human ancestors in Africa.

But now, in a new plot twist in the unfolding mystery of how Neandertals were related to modern humans, it seems that members of our own lineage were among the ancestors of Neandertals.

New evidence even raises the possibility that our modern human ancestors may have journeyed by raft or simple boat out of Africa 60,000 to 70,000 years ago, crossing the mouth of the Red Sea.

By sequencing ancient DNA from the fossils of human ancestors, researchers have recently discovered new types of ancient humans and revealed interbreeding between our ancestors and our archaic cousins, including Neandertals.

This is the famous site of Dmanisi, Georgia, which offers an unparalleled glimpse into a harsh early chapter in human evolution, when primitive members of our genus Homo struggled to survive in a new land far north of their ancestors» African home, braving winters without clothes or fire and competing with fierce carnivores for meat.

These tall, relatively large - brained ancestors of modern humans arose about 1.9 million years ago and soon afterward invented a sophisticated new tool, the hand ax.

New fossil evidence suggests human ancestors may have split from chimps as early as 10 million years ago, bringing fossil evidence in line with data from molecular clocks

Between 1 and 4 per cent of the DNA of modern non-Africans is of Neanderthal origin, implying their ancestors must have interbred before humans moved into Europe (New Scientist, 15 May 2010, p 8).

So far, the exact mechanism by which splicing occurs was unknown, but a new SISSA / CNR - IOM study carried out with the collaboration of the Swiss EPFL has reconstructed in detail — by using computer simulations — the cleavage process for group II introns, considered the ancestors of the spliceosome, thereby shedding light on the much more complex splicing mechanism in humans.

«If these [new] dates are correct, they must be from a human population that was largely replaced by the people who are the primary ancestors of today's Australians and New Guineans,» he sanew] dates are correct, they must be from a human population that was largely replaced by the people who are the primary ancestors of today's Australians and New Guineans,» he saNew Guineans,» he says.

New sources of ancient DNA should amplify the power of this molecular relic to shed light on human ancestors.

Previous studies have revealed that human hair, reptile scales and bird feathers evolved from a single ancestor — a reptile that lived 300 million years ago — but this new study from the Fraser Lab at Sheffield has found that the skin teeth found on sharks also developed from the same genes.

The Atapuerca team suggests that the bones be reclassified as a new, still unnamed species that was the immediate ancestor of Neandertals, but not modern humans.

A new study examining the muscular system of bonobos provides firsthand evidence that the rare great ape species may be more closely linked to human ancestors than common chimpanzees.

But a new study suggests that human ancestors in South Africa had a good grip perhaps as early as 3 million years ago — and so may have wielded stone tools earlier than expected.

The tools, whose makers may or may not have been some sort of human ancestor, push the known date of such tools back by 700,000 years; they also may challenge the notion that our own most direct ancestors were the first to bang two rocks together to create a new technology.

The study provides new details of how, billions of years ago, complex cell types that comprise plants, fungi, but also animals and humans, gradually evolved from simpler microbial ancestors.

A new study examining the muscular system of bonobos provides firsthand evidence that the rare great ape species may be more closely linked, anatomically, to human ancestors than common chimpanzees.

Dr. Mark Grabowski from the Senckenberg Centre for Human Evolution and Palaeoenvironment at the University of Tübingen together with his colleague Professor William L. Jungers from the University of Stony Brook, New York, break new ground in assessing the size and inferring the way of life of this unknown creature and its ancestoNew York, break new ground in assessing the size and inferring the way of life of this unknown creature and its ancestonew ground in assessing the size and inferring the way of life of this unknown creature and its ancestors.

PALISADES, NEW YORK — When human ancestors began scavenging for meat regularly on the open plains of Africa about 2.5 million years ago, they apparently took more than their fair share of flesh.

The primitive traits in this 3.4 - million - year - old partial right foot also show that there was more than one way for early human ancestors to walk upright for at least a million years, according to a new study.

But new genetic studies of ancient DNA from Neandertals have found that they and the last ancestor they shared with humans, about 600,000 years ago, also lacked much genetic variation, which would require at least three dramatic bottlenecks — an improbable scenario.

In a new study, a research team led by Yale University found that even the oldest known human ancestors may have had precision grip capabilities comparable to modern humans.

Hublin and Premo propose that if human ancestors selected mates from similar backgrounds, there would have been a lot of inbreeding within different populations, restricting the flow of new mutations to other groups.

The sequencing of the human genome (ScienceNOW, 14 April 2003:) gave scientists major new insights into what makes us human: Although we share more than 98 % of our genetic code with the chimpanzee, natural selection has turned us into a very different animal than the chimps, from whom our hominid ancestors split evolutionarily some 6 million years ago (ScienceNOW, 31 August).

Perhaps a larger implication is that the ability to learn new words for the same object may extend way beyond humans, even back 6 million years to the last common ancestor of humans and apes before they went their separate ways.

But the new - found fossils» traits do not neatly fit A. sediba into the hominin family tree, which includes only humans and our ancestors and extinct cousins.

Kate, some human evolution stuff at the meeting about the arguments about some new fossils about whether it's a direct ancestor to Homo sapiens or whether it's an Australopithecine.

The impressive record of bipedal tracks from Laetoli Locality 8 (Site G and the new Site S) may open a window on the behaviour of a group of remote human ancestors, envisaging a scenario in which at least five individuals (G1, G2, G3, S1 and S2) were walking in the same time frame, in the same direction and at a similar moderate speed.

A new study debunks the idea that a diminutive early human species knick - named the «hobbits» of Indonesia were closely linked to an ancestor of modern humans.

New evidence has just turned up early ancestors of humans in Africa mated with Neandertals about 110,000 years ago.

«The new species is the most conclusive evidence for the contemporaneous presence of more than one closely related early human ancestor species prior to 3 million years ago,» the Cleveland Museum of Natural History said in a statement released Wednesday.

The new information strengthens the view that the old bones belong to the earliest known human ancestor, the scientists conclude.

Not by Babylonian standards Archaeology's Top Ten Discoveries of 2010 «New» Old Human Ancestors: Siberia's Denisovians Macchu Pichu Artifacts Being Returned by Yale World's Oldest Champagne Tastes Sweet After 200 - Year Shipwreck Did Cavemen Make Bread?

Under the Wolpoff / Thorne scheme the new definition of Homo sapiens would include all human ancestors with brain sizes from 850 - 2000 + cc.

Although scientists are working on a cure, a new authoritarian government, led by Mayor Kobayashi (whose ancestor was killed in the dog - human battles), assumes control.

UW - Madison researchers are on a team that identifies a new human - like ancestor in bones found in a South African cave, and the university exce...