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A discovery announced in threw yet another splinter in the picture.

Fossil DNA Reveals New Twists in Modern Human Origins

Many scientists had believed Homo habilis gave rise to Homo erectus who gave rise to modern humans. But the new finding shows habilis and erectus lived side by side for half a million years, raising doubt that habilis is a direct human ancestor. The scientists also found that erectus exhibited large size variation within the species, as shown in this image comparing two erectus skulls.

National Geographic - THE NEANDERTHALS - FIRST PEOPLES OF EUROPE - HD Full Documentary

The discovery of a skull cap and partial skeleton from a cave in Germany's Neander valley was the first recognized fossil human form. But exactly how the species, named in as Homo neanderthalensis, is related to modern humans remains the subject of fierce academic debate. Neanderthals occupied Europe and Asia from about , years to 30, years ago, overlapping in places with modern humans.

Recent genetic analyses suggest little, if any, interbreeding between the species. Skeletal evidence, however, suggests Neanderthals were not very different than their modern human cousins. Even their brains were comparable to, if not bigger, than ours, as depicted in this Neanderthal reconstruction. Other studies have shown that like modern humans, Neanderthals used tools, wore jewelry, hunted, and buried their dead.

As modern humans spread around the world over the past , years or so, a hobbit-like ancestor was holed up on the Indonesian island of Flores until at least 12, years ago, scientists announced at a press briefing in , shown here. The stunning find has been scrutinized ever since. Some scientists agree the fossils represent a new species, Homo floresiensis. Others suggest the fossils belong to a diminutive race of modern humans, perhaps afflicted by one of several diseases associated with dwarfing. The two partial skulls shown here of modern humans, Homo sapiens, were unearthed in Ethiopia in At the time, they were given a preliminary date of , years old.

A revision using more modern dating techniques found them to be about , years old, making them the oldest known fossils of modern humans. Genetic evidence suggests modern humans arose in Africa about , years ago and then spread around the world, though other scientists hypothesize modern humans arose in parallel in Africa, Europe, and Asia.

Expand Explainer. Show discussion. Science on NBCNews. Ten fossils that trace the story of human origins Scientists piece together humanity's history from a growing fossil record Below: x Jump to discuss comments below discuss x Next story in Science related. Explainer: Ten fossils that tell the human tale JavaScript is required to view our full story experience. Thigh bone suggests earliest two-legged walker Middle Awash discovery fills gap in evolution story Lucy, the world's most famous fossil Taung child hailed as 'missing link' in Turkana boy, most complete skeleton found Fossil discovery splinters human family tree Neanderthals' relationship to modern humans fuzzy Hobbit discovery stuns the world, stirs debate Oldest modern humans found in Ethiopia Expand.

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Our closest ancient human relatives

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  • Search Most popular on msnbc. We know from injuries found on their prey - such as mammoths, bison and reindeer - that Neanderthals were proficient hunters, intelligent and able to communicate. Healed and unhealed bone damage found on Neanderthals themselves suggest they killed large animals at close range - a risky strategy that would have required considerable skill, strength and bravery.

    Neanderthals also developed the ability to make fire from at least , years ago. They needed it to live in their very challenging environments. Because many Neanderthal fossils and artefacts have been found in caves, the species became synonymous with the idea of cavemen.

    human evolution | Stages & Timeline |

    But many early modern humans also lived in caves - some of the most famous examples being the original Cro-Magnon Man, found in France, and Cheddar Man , who was found in Gough's Cave and lived in Somerset around 10, years ago. Archaeological evidence shows that some Neanderthals looked after their sick and buried their dead, which suggests they were social and even compassionate beings.

    Cast of a Neanderthal burial in Kebara Cave, Israel, from around 60, years ago. The position of the upper limbs suggests the body was deposited in the grave before rigor mortis set in. The head is absent. Some scientists believe it was removed after burial, but we don't know why. Prof Stringer says, 'So far, in my opinion, we don't have representational art from Neanderthal sites. But they did exhibit a degree of symbolism - they made jewellery. Some of this jewellery was apparently fashioned from eagle talons. The oldest examples are about , years old.

    A study published in Science in found evidence that some Palaeolithic artwork in Spain was made by Neanderthals, as they dated to a time long before modern humans were in the region. Created using red pigment, the Spanish cave paintings included hand stencils and geometric shapes. The Spanish cave art indicates that Neanderthals were in fact capable of symbolic or artistic expression.

    Prof Stringer adds, 'They further narrow any perceived behavioural gap between the Neanderthals and us. However, there are still no clear examples of Neanderthals creating representational art copied from real sources such as animals or people. The typical image of Neanderthals is of highly carnivorous, ice-age hunters and scavengers who ate large mammals. However, food remains preserved in the calculus hardened tartar around their teeth show that the Neanderthal diet also included various plants, either collected directly or from eating the stomach contents of their plant-eating prey.

    Neanderthals also ate fungi. In Gibraltar, they consumed mussels, young seals and perhaps also dolphin, though that meat may have been sourced from scavenged carcasses. Part of a seal jaw found in Vanguard cave in Gibraltar. Researchers found evidence - such as cutmarks from tools - that Neanderthals processed marine animals for food. Although Neanderthals were able to use fire, whether they regularly cooked their food is unclear. It's very difficult to determine whether Neanderthals had spoken language as the tissue associated with the voice box doesn't preserve.

    However, they did have a similar vocal anatomy and their ear bones suggest they had a similar range of hearing to us. The complexity of their social lives also suggests they must have been able to talk to each other, although their language may have been simpler than ours. The most recent fossil and archaeological evidence of Neanderthals is from about 40, years ago in Europe.

    After that point they appear to have gone physically extinct, although part of them lives on in the DNA of humans alive today. The extinction of Homo neanderthalensis is a well-known fact, but why did this species disappear after having survived for more than , years? We don't yet know. One view is that we are the reason. Early modern humans started to arrive in Europe more than 40, years ago. Perhaps Neanderthals were unable to cope with competition for resources from incoming groups of Homo sapiens. Ancient DNA began to be recovered from Neanderthal fossils in , and this has led on to the reconstruction of several complete genomes.

    These indicate that Neanderthals ranging from Spain to Siberia were relatively low in numbers and diversity during their last 20, years. The genome of one female individual from the Altai Mountains also shows signs of long-term inbreeding in her population, a further indication of low numbers and isolation. It seems that regular and sometimes extreme climatic fluctuations continually fragmented Neanderthal groups during the last , years, preventing them from building up large populations and continuous distributions across their range.

    Palaeoanthropologists - including Prof Chris Stringer right - search for evidence of Neanderthals at an excavation in Gibraltar. Neanderthals did not all become extinct at the same time. Their disappearance may have been staggered, suggesting that they were replaced by early modern humans as a result of local population extinctions, rather than being quickly overrun.

    Rapid and dramatic climate change may have been another major factor that contributed to Neanderthals' extinction. When severe changes in temperature happened rapidly, the plants and animals Neanderthals relied on were also affected. Faced with such conditions, only the most resourceful and adaptable could survive.

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    Although the first Neanderthal remains were found at sites in Belgium and Gibraltar in and respectively, they weren't recognised as such until decades later. It was the partial skeleton of a male Neanderthal unearthed during quarrying operations in the Neander Valley in Germany in that was first recognised as a distinct form of human.

    It was named as a new human species, Homo neanderthalensis , eight years later in It was the first ancient human species ever identified and is now known as Neanderthal 1 or Feldhofer 1, after the original name of the cave where it was found. The ,year-old partial skull from Swanscombe in Kent, thought to belong to an early Neanderthal woman. A guide to our fossil relatives, the cast of characters who hold the secret to humankind's origins.

    Embark on a seven-million-year journey of evolution and see fossil and artefact discoveries in the Human Evolution gallery. Many of us carry around two per cent Neanderthal DNA in our genes. Prof Chris Stringer discusses why and what it means. Breeding with Neanderthals allowed our ancestors to better cope with European winters, but also passed on diseases we suffer today.

    Unearth the one-million-year story of humans in Britain and their struggle to survive in a changing land. Meet your long-lost relative and find out why their discovery has had such an impact on our family tree. Get email updates about our news, science, exhibitions, events, products, services and fundraising activities. You must be over the age of Privacy notice.

    We use cookies and similar technologies to optimise your experience when using this site and to help tailor our digital advertising on third party sites. View our Cookie Policy and our new Privacy notice. By Lisa Hendry. Our closest ancient human relatives Neanderthals were humans like us, but they were a distinct species called Homo neanderthalensis. When did Neanderthals live? Where did Neanderthals live?

    What did Neanderthals look like? Neanderthal intelligence and behaviour Despite their reputation as being primitive 'cavemen', Neanderthals were actually very intelligent and accomplished humans. One of thousands of Neanderthal handaxes found in ancient river sediments at Swanscombe in Kent. Watch a video about how Neanderthals hunted mammoths in Jersey about , years ago:. Life was hard, but these people were very resourceful.

    Neanderthals vs Homo sapiens Because many Neanderthal fossils and artefacts have been found in caves, the species became synonymous with the idea of cavemen. Did Neanderthals make art? What did Neanderthals eat? Could Neanderthals speak?