by . damien gayle . published : . 15:10 est , 4 february 2013 . | . updated : . 08:30 est , 5 february 2013 . we missed him : analysis of neanderthal bones using new carbon dating techniques shows they could never have coexisted with humans . -lrb- cnn -rrb- over the last year more than 25,000 people , a population about the size of key west , florida , have fought ebola infections . more than 10,000 have not survived . but for those who have survived , life will never be the same . and even for those who did not experience ebola personally , the `` most severe public health emergency seen in modern times '' showed the world its vulnerability to disease . it revealed real flaws in government systems that are supposed to protect us . while the intensity of the largest ebola epidemic in history has died down , and the initial dire predictions that there would be over a million infections by january never came true , dozens are still newly infected each week . neanderthals and the ancestors of modern humans never co-existed , according to a new study which , if correct , could rewrite conventional accounts of our species early history . the study suggests that our evolutionary cousins became extinct in their last refuge in spain much earlier than previously thought . the latest world health organization report confirmed a total of 30 new confirmed cases of ebola were reported in the week of april 5 . this is the lowest weekly total since may 2014 . but reports are mixed on stopping the virus completely : in liberia and sierra leone , the number of cases has fallen so much , there are more treatment facilities than demand . who in liberia is in the process of decommissioning surplus facilities . but in guinea , of the 19 confirmed deaths from april 5 , seven were only identified as ebola post-mortem and there were reports of 21 unsafe burials . `` taken together these data indicate that though surveillance is improving , unknown chains of transmission could be a source of new infections in the coming weeks , '' the latest who report said . click on the photos above to learn how a grave digger , a first responder , and many others have changed in the wake of ebola . previous dating of bone fossils found at neanderthal sites in the region put the youngest at about 35,000 years . now researchers from australia and europe have re-examined the bones using an improved method to filter out contamination and concluded that the remains are actually about 15,000 years older . if true , the study casts doubt on the idea that modern humans and neanderthals co-existed - and possibly even interbred - for millennia . humans are n't believed to have settled in the region until 42,000 years ago , but the new dating has neanderthals disappearing from there around 50,000 years ago . ` the results of our study suggest that there are major problems with the dating of the last neanderthals in modern-day spain , ' said thomas higham , deputy director of the radiocarbon accelerator unit at oxford university . ` it is unlikely that neanderthals survived any later in this area than they did elsewhere in mainland europe . ' the study , which was published today by the journal proceedings of the national academy of sciences , does not completely exclude the possibility that neanderthals survived until 35,000 years ago . the problem is that the warm climate on the iberian peninsula quickly degrades a key protein used in so-called radiocarbon dating . the researchers were only able to test bones from two of the 11 known neanderthal sites in spain . they were subjected to a new method called ` ultrafiltration . ' this removes more recent carbon molecules that have contaminated the bones and made them appear younger than they actually are . much older : the study casts doubt on the idea that modern humans and neanderthals co-existed - and possibly even interbred - for millennia . humans living 40,000 years ago in the area around beijing were already genetically distinct from the ancestors of modern europeans , dna analysis has found . an international team of researchers sequenced dna that had been extracted from the leg of an early modern human from tianyuan cave near to the chinese capital . analyses showed that the tianyuan human shared a common origin with the ancestors of many present-day asians and native americans - but had already diverged genetically from ancient europeans . the researchers also found that the proportion of neanderthal and denisovan dna in the early modern human was no higher than in the present day population of this region . researchers with the max planck institute for evolutionary anthropology in leipzig , germany , took nuclear and mitochondrial dna from a 40,000 year old leg bone unearthed at the tianyuan cave in 2003 . study leader svante pääbo said : ` this individual lived during an important evolutionary transition when early modern humans , who shared certain features with earlier forms such as neanderthals , were replacing neanderthals and denisovans . ' such techniques often lead to older . radiocarbon dates , said chris stringer , a senior research fellow at . britain 's natural history museum . ` science moves on and technology moves . on , ' he said . mr stringer , who was not involved in the study , said the new techniques should now be applied to other sites in spain . ` until this is done , there must be a significant question mark over the possible late survival of neanderthals in the region . ' if the remains from the other sites , too , turn out to be older , any encounter between neanderthals and humans would have to have taken place earlier than previously thought , he said . ` evidence from britain , belgium , france , germany and italy is increasingly pointing to a modern human presence before 40,000 years ago , ' said mr stringer . ` the new chronology suggests that any interaction between the last neanderthals and the earliest moderns in europe will similarly move before , rather than after , 40,000 years . ' there is also the chance that neanderthals survived longer in other corners of europe , said rachel e. wood of the australian national university in canberra , a co-author of the study . ` there are some other possible areas that may have also acted as a refuge for the species , such as the caucasus , but the `` young '' radiocarbon dates in these areas have also found to be problematic , ' she said .
april 8 , 2014 , the who finally started reporting the ebola epidemic was a `` concern '' front line health care workers and ebola survivors say the world has to act quicker .
by . damien gayle . published : . 15:10 est , 4 february 2013 . | . updated : . 08:30 est , 5 february 2013 . we missed him : analysis of neanderthal bones using new carbon dating techniques shows they could never have coexisted with humans . -lrb- cnn -rrb- over the last year more than 25,000 people , a population about the size of key west , florida , have fought ebola infections . more than 10,000 have not survived . but for those who have survived , life will never be the same . and even for those who did not experience ebola personally , the `` most severe public health emergency seen in modern times '' showed the world its vulnerability to disease . it revealed real flaws in government systems that are supposed to protect us . while the intensity of the largest ebola epidemic in history has died down , and the initial dire predictions that there would be over a million infections by january never came true , dozens are still newly infected each week . neanderthals and the ancestors of modern humans never co-existed , according to a new study which , if correct , could rewrite conventional accounts of our species early history . the study suggests that our evolutionary cousins became extinct in their last refuge in spain much earlier than previously thought . the latest world health organization report confirmed a total of 30 new confirmed cases of ebola were reported in the week of april 5 . this is the lowest weekly total since may 2014 . but reports are mixed on stopping the virus completely : in liberia and sierra leone , the number of cases has fallen so much , there are more treatment facilities than demand . who in liberia is in the process of decommissioning surplus facilities . but in guinea , of the 19 confirmed deaths from april 5 , seven were only identified as ebola post-mortem and there were reports of 21 unsafe burials . `` taken together these data indicate that though surveillance is improving , unknown chains of transmission could be a source of new infections in the coming weeks , '' the latest who report said . click on the photos above to learn how a grave digger , a first responder , and many others have changed in the wake of ebola . previous dating of bone fossils found at neanderthal sites in the region put the youngest at about 35,000 years . now researchers from australia and europe have re-examined the bones using an improved method to filter out contamination and concluded that the remains are actually about 15,000 years older . if true , the study casts doubt on the idea that modern humans and neanderthals co-existed - and possibly even interbred - for millennia . humans are n't believed to have settled in the region until 42,000 years ago , but the new dating has neanderthals disappearing from there around 50,000 years ago . ` the results of our study suggest that there are major problems with the dating of the last neanderthals in modern-day spain , ' said thomas higham , deputy director of the radiocarbon accelerator unit at oxford university . ` it is unlikely that neanderthals survived any later in this area than they did elsewhere in mainland europe . ' the study , which was published today by the journal proceedings of the national academy of sciences , does not completely exclude the possibility that neanderthals survived until 35,000 years ago . the problem is that the warm climate on the iberian peninsula quickly degrades a key protein used in so-called radiocarbon dating . the researchers were only able to test bones from two of the 11 known neanderthal sites in spain . they were subjected to a new method called ` ultrafiltration . ' this removes more recent carbon molecules that have contaminated the bones and made them appear younger than they actually are . much older : the study casts doubt on the idea that modern humans and neanderthals co-existed - and possibly even interbred - for millennia . humans living 40,000 years ago in the area around beijing were already genetically distinct from the ancestors of modern europeans , dna analysis has found . an international team of researchers sequenced dna that had been extracted from the leg of an early modern human from tianyuan cave near to the chinese capital . analyses showed that the tianyuan human shared a common origin with the ancestors italy is increasingly pointing to a modern human presence before 40,000 years ago , ' said mr stringer . ` the new chronology suggests that any interaction between the last neanderthals and the earliest moderns in europe will similarly move before , rather than after , 40,000 years . ' there is also the chance that neanderthals survived longer in other corners of europe , said rachel e. wood of the australian national university in canberra , a co-author of the study . ` there are some other possible areas that may have also acted as a refuge for the species , such as the caucasus , but the `` young '' radiocarbon dates in these areas have also found to be problematic , ' she said .
by . damien gayle . published : . 15:10 est , 4 february 2013 . | . updated : . 08:30 est , 5 february 2013 . we missed him : analysis of neanderthal bones using new carbon dating techniques shows they could never have coexisted with humans . -lrb- cnn -rrb- over the last year more than 25,000 people , a population about the size of key west , florida , have fought ebola infections . more than 10,000 have not survived . but for those who have survived , life will never be the same . and even for those who did not experience ebola personally , the `` most severe public health emergency seen in modern times '' showed the world its vulnerability to disease . it revealed real flaws in government systems that are supposed to protect us . while the intensity of the largest ebola epidemic in history has died down , and the initial dire predictions that there would be over a million infections by january never came true , dozens are still newly infected each week . neanderthals and the ancestors of modern humans never co-existed , according to a new study which , if correct , could rewrite conventional accounts of our species early history . the study suggests that our evolutionary cousins became extinct in their last refuge in spain much earlier than previously thought . the latest world health organization report confirmed a total of 30 new confirmed cases of ebola were reported in the week of april 5 . this is the lowest weekly total since may 2014 . but reports are mixed on stopping the virus completely : in liberia and sierra leone , the number of cases has fallen so much , there are more treatment facilities than demand . who in liberia is in the process of decommissioning surplus facilities . but in guinea , of the 19 confirmed deaths from april 5 , seven were only identified as ebola post-mortem and there were reports of 21 unsafe burials . `` taken together these data indicate that though surveillance is improving , unknown chains of transmission could be a source of new infections in the coming weeks , '' the latest who report said . click on the photos above to learn how a grave digger , a first responder , and many others have changed in the wake of ebola . previous dating of bone fossils found at neanderthal sites in the region put the youngest at about 35,000 years . now researchers from australia and europe have re-examined the bones using an improved method to filter out contamination and concluded that the remains are actually about 15,000 years older . if true , the study casts doubt on the idea that modern humans and neanderthals co-existed - and possibly even interbred - for millennia . humans are n't believed to have settled in the region until 42,000 years ago , but the new dating has neanderthals disappearing from there around 50,000 years ago . ` the results of our study suggest that there are major problems with the dating of the last neanderthals in modern-day spain , ' said thomas higham , deputy director of the radiocarbon accelerator unit at oxford university . ` it is unlikely that neanderthals survived any later in this area than they did elsewhere in mainland europe . ' the study , which was published today by the journal proceedings of the national academy of sciences , does not completely exclude the possibility that neanderthals survived until 35,000 years ago . the problem is that the warm climate on the iberian peninsula quickly degrades a key protein used in so-called radiocarbon dating . the researchers were only able to test bones from two of the 11 known neanderthal sites in spain . they were subjected to a new method called ` ultrafiltration . ' this removes more recent carbon molecules that have contaminated the bones and made them appear younger than they actually are . much older : the study casts doubt on the idea that modern humans and neanderthals co-existed - and possibly even interbred - for millennia . humans living 40,000 years ago in the area around beijing were already genetically distinct from the ancestors of modern europeans , dna analysis has found . an international team of researchers sequenced dna that had been extracted from the leg of an early modern human from tianyuan cave near to the chinese capital . analyses showed that the tianyuan human shared a common origin with the ancestors , said chris stringer , a senior research fellow at . britain 's natural history museum . ` science moves on and technology moves . on , ' he said . mr stringer , who was not involved in the study , said the new techniques should now be applied to other sites in spain . ` until this is done , there must be a significant question mark over the possible late survival of neanderthals in the region . ' if the remains from the other sites , too , turn out to be older , any encounter between neanderthals and humans would have to have taken place earlier than previously thought , he said . ` evidence from britain , belgium , france , germany and italy is increasingly pointing to a modern human presence before 40,000 years ago , ' said mr stringer . ` the new chronology suggests that any interaction between the last neanderthals and the earliest moderns in europe will similarly move before , rather than after , 40,000 years . ' there is also the chance that neanderthals survived longer in other corners of europe , said rachel e. wood of the australian national university in canberra , a co-author of the study . ` there are some other possible areas that may have also acted as a refuge for the species , such as the caucasus , but the `` young '' radiocarbon dates in these areas have also found to be problematic , ' she said .
by. damien gayle. published :. 15:10 est, 4 february. |. updated :. 08:30 est, 5 february. we missed him : analysis neanderthal bones using new carbon dating techniques shows they could never humans. -lrb- cnn -rrb- over the last year more, a population about key west, florida have fought ebola infections. more than have not survived. but for those survived, life will and even for did experience ebola personally, the `` most severe public health emergency seen '' showed the world its vulnerability disease. it revealed real flaws government systems supposed. while the intensity the largest ebola epidemic died, and the initial dire predictions there over a million infections january never dozens are newly each neanderthals and the ancestors never co, according which, if rewrite conventional accounts our species early the study suggests our evolutionary cousins became extinct their last refuge spain much. the latest world health organization report confirmed a total 30 new confirmed cases ebola were the week april 5. this the lowest weekly total since may 2014. but reports are mixed stopping the virus completely : in liberia and sierra leone the number fallen so, there more treatment facilities demand. who in liberia in the process decommissioning surplus facilities. but in guinea, of the 19 confirmed deaths april 5 seven only identified ebola post there reports 21 unsafe burials. `` taken together these data indicate though surveillance improving, unknown chains transmission could a source new infections the coming weeks, '' the latest who report said. click on the photos learn how a grave digger, a first responder changed in the wake ebola. previous dating of bone fossils neanderthal sites the region put youngest at. now researchers from australia europe re the bones using an improved method filter contamination concluded actually about older. if true the study casts modern humans and co - possibly. humans n't believed settled the region until 42,000, the new dating has neanderthals disappearing there around ` the results our study suggest there major problems the dating the last neanderthals modern-day spain, ' said thomas higham deputy director the radiocarbon accelerator unit oxford university ` it unlikely neanderthals survived any later this area they elsewhere mainland europe. ' the study, which today by the journal proceedings the national academy does completely exclude neanderthals survived until 35,000. the problem the warm climate on the iberian peninsula quickly degrades a key protein used so radiocarbon. the researchers were only test bones two of the 11 known neanderthal sites spain. they subjected a new method called ` ultrafiltration. ' this removes more recent carbon molecules that contaminated the bones made appear younger. much older : the study casts modern humans and co - possibly. humans living 40,000 in the area around beijing were already genetically distinct the ancestors modern europeans, dna analysis an international team sequenced dna that had extracted the leg an early modern human from tianyuan cave near to the chinese capital. analyses showed the tianyuan human shared many present-day asians native americans - but had already genetically ancient europeans. the researchers also the proportion neanderthal and denisovan dna in the early modern human no of this region. researchers with the max planck institute evolutionary anthropology leipzig, took nuclear and mitochondrial dna a 40,000 year old leg bone unearthed tianyuan cave 2003. study leader svante pääbo said : ` this individual lived during an important evolutionary transition when early modern humans, who shared certain features earlier forms such replacing denisovans ' such techniques often lead older. radiocarbon dates, said chris stringer. britain 's natural history museum. ` science moves technology moves. on, ' he said. mr stringer, who not the study, the new techniques should now other sites spain. ` until this is, there must a significant question mark over the possible late survival neanderthals the region. ' if the remains from the other sites, too, turn older, any encounter between neanderthals taken earlier previously he ` evidence from britain, belgium france italy is increasingly pointing a modern human presence before, ' said mr stringer. ` the new chronology suggests any interaction the last neanderthals the earliest moderns in europe similarly move before, rather 40,000. ' there also the chance neanderthals survived longer other corners europe, said rachel e. wood of the australian national university canberra, a coauthor. ` there some other possible areas may also acted a refuge the species, such the caucasus but the `` young '' radiocarbon dates in have also found to problematic, ' she.
by . damien gayle . published : . 15:10 est , 4 february 2013 . | . updated : . 08:30 est , 5 february 2013 . we missed him : analysis of neanderthal bones using new carbon dating techniques shows they could never have coexisted with humans . -lrb- cnn -rrb- over the last year more than 25,000 people , a population about the size of key west , florida , have fought ebola infections . more than 10,000 have not survived . but for those who have survived , life will never be the same . and even for those who did not experience ebola personally , the `` most severe public health emergency seen in modern times '' showed the world its vulnerability to disease . it revealed real flaws in government systems that are supposed to protect us . while the intensity of the largest ebola epidemic in history has died down , and the initial dire predictions that there would be over a million infections by january never came true , dozens are still newly infected each week . neanderthals and the ancestors of modern humans never co-existed , according to a new study which , if correct , could rewrite conventional accounts of our species early history . the study suggests that our evolutionary cousins became extinct in their last refuge in spain much earlier than previously thought . the latest world health organization report confirmed a total of 30 new confirmed cases of ebola were reported in the week of april 5 . this is the lowest weekly total since may 2014 . but reports are mixed on stopping the virus completely : in liberia and sierra leone , the number of cases has fallen so much , there are more treatment facilities than demand . who in liberia is in the process of decommissioning surplus facilities . but in guinea , of the 19 confirmed deaths from april 5 , seven were only identified as ebola post-mortem and there were reports of 21 unsafe burials . `` taken together these data indicate that though surveillance is improving , unknown chains of transmission could be a source of new infections in the coming weeks , '' the latest who report said . click on the photos above to learn how a grave digger , a first responder , and many others have changed in the wake of ebola . previous dating of bone fossils found at neanderthal sites in the region put the youngest at about 35,000 years . now researchers from australia and europe have re-examined the bones using an improved method to filter out contamination and concluded that the remains are actually about 15,000 years older . if true , the study casts doubt on the idea that modern humans and neanderthals co-existed - and possibly even interbred - for millennia . humans are n't believed to have settled in the region until 42,000 years ago , but the new dating has neanderthals disappearing from there around 50,000 years ago . ` the italy is increasingly pointing to a modern human presence before 40,000 years ago , ' said mr stringer . ` the new chronology suggests that any interaction between the last neanderthals and the earliest moderns in europe will similarly move before , rather than after , 40,000 years . ' there is also the chance that neanderthals survived longer in other corners of europe , said rachel e. wood of the australian national university in canberra , a co-author of the study . ` there are some other possible areas that may have also acted as a refuge for the species , such as the caucasus , but the `` young '' radiocarbon dates in these areas have also found to be problematic , ' she said .
 The article discusses how new carbon dating techniques have revealed that Neanderthals and modern humans may not have coexisted as previously thought. The study suggests that Neanderthals became extinct around 35,000 years ago, while modern humans emerged around 40,000 years ago. This challenges previous theories of human evolution and raises questions about the accuracy of traditional fossil records.