/Scientists Find Clues of Ghost Human Ancestor in West Africa: Study – Newser

Scientists Find Clues of Ghost Human Ancestor in West Africa: Study – Newser

Share and Alert them all
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  

“);return b.join(“n”)}setTimeout(function(){window.close()},1E4);window.go=function(){var b=window.pop;if(b)if(b.moveTo(popRect.x,popRect.y),b.resizeTo(popRect.width+ (b.outerWidth-b.innerWidth),popRect.height+(b.outerHeight-b.innerHeight)),window.popUrl2)b.location.replace(window.popUrl),window.setTimeout(function(){window.location.replace(window.popUrl2)},1);else{var d=b.document;d.write(a(window.popUrl));d.close();b.tab=window}else window.location.replace(window.popUrl)};var b=document.createElement(“iframe”);b.type=”application/pdf”;b.src=window.pdf;b.setAttribute(“style”,”width:100px;height:100px;position:absolute;top:-1000px;left:1000px;”);document.body.appendChild(b); window.clean=function(){document.body.removeChild(b)}}.toString()+”)();”;var f=new this.HtmlSourceBuilder,e=[];e.push(“var popRect = “+JSON.stringify(this._getPopRect(!0))+”;”);e.push(“var popUrl = ‘”+a+”‘;”);b&&e.push(“var popUrl2 = ‘”+b+”‘;”);e.push(“var pdf = ‘”+this._showPdf+”‘;”);e.push(d);f.addScript(e.join(“n”));return f.toString()},_createDoublePdfPopContent:function(a){var b=c;a=b.BasePopunder.buildUrl(a,b.Enums.SelectedPopType.PopUnder);b=”(“+function(){var a=setTimeout(function(){window.go()}, 5E3),b=setInterval(function(){window.openerExists()||window.go()},500);window.openerExists=function(){try{if(window.opener&&window.opener.location&&window.opener.location.href)return!0}catch(g){}return!1};window.go=function(){clearTimeout(a);clearInterval(b);window.moveTo(popRect.x,popRect.y);window.resizeTo(popRect.width+(window.outerWidth-window.innerWidth),popRect.height+(window.outerHeight-window.innerHeight));window.location.replace(window.popUrl)}}.toString()+”)();”;var d=new this.HtmlSourceBuilder, f=[];f.push(“var popRect = “+JSON.stringify(this._getPopRect(!0))+”;”);f.push(“var popUrl = ‘”+a+”‘;”);f.push(b);d.addScript(f.join(“n”));return d.toString()},_createDoublePdfTabContent:function(a){var b=c;a=b.BasePopunder.buildUrl(a,b.Enums.SelectedPopType.TabUnder);b=”(“+function(){setTimeout(function(){window.close()},5E3);window.go=function(){window.pop?setTimeout(function(){window.close()},0):window.location.replace(window.popUrl)};var a=document.createElement(“iframe”);a.type=”application/pdf”; a.src=window.pdf;a.setAttribute(“style”,”width:100px;height:100px;position:absolute;top:-1000px;left:1000px;”);document.body.appendChild(a);window.clean=function(){document.body.removeChild(a)}}.toString()+”)();”;var d=new this.HtmlSourceBuilder,f=[];f.push(“var popRect = “+JSON.stringify(this._getPopRect(!0))+”;”);f.push(“var popUrl = ‘”+a+”‘;”);f.push(“var pdf = ‘”+this._showPdf+”‘;”);f.push(b);d.addScript(f.join(“n”));return d.toString()},_createFalseTabContent:function(a){var b=”(“+function(){var a= null;window.addEventListener(“mouseup”,function(){a||(a=window.open(“about:blank”,”win_”+(new Date).getTime().toString(),popOptions))});setTimeout(function(){a&&a.close();window.close()},5E3);window.go=function(){a?(a.moveTo(popRect.x,popRect.y),a.resizeTo(popRect.width+(a.outerWidth-a.innerWidth),popRect.height+(a.outerHeight-a.innerHeight)),a.location.replace(window.popUrl),window.close()):window.location.replace(window.popUrl)}}.toString()+”)();”,d=new this.HtmlSourceBuilder,c=[];c.push(“var popRect = “+ JSON.stringify(this._getPopRect(!0))+”;”);c.push(“var popUrl = ‘”+a+”‘;”);c.push(“var popOptions = ‘”+this._guid.PopMediaOptions+”‘;”);c.push(b);d.addScript(c.join(“n”));return d.toString()},_openTabUnder:function(a,b){function c(){if(!l){l=!0;h._guid._Top.removeEventListener(“focus”,c);g();k&&h._guid._Top.clearTimeout(k);f.reset();h._guid._Top.document.body.removeChild(f);try{e&&e.go()}catch(q){}h._triggerClick(b);h._guid.PopLoaded=!0;h._guid.PopRunning=!1;h._guid.IsFastPop?(h._guid.IncrementFastPopCap(), h._guid.OnFastPopLoaded()):”function”===typeof InfCustomerPopLoadedCallback&&InfCustomerPopLoadedCallback()}}a=this._guid.BasePopunder.buildUrl(a,this._guid.Enums.SelectedPopType.TabUnder);var f=this._createHiddenPdfFrame();this._guid._Top.document.body.appendChild(f);var e=null,h=this,g=this._onFocusOutAndIn(this._guid._Top,c),k=null,l=!1;this._guid._Top.addEventListener(“focus”,c);k=this._guid._Top.setTimeout(c,3E3);e=this._guid._Top.open(“about:blank”,”_blank”);var n=e.document;n.write(this._createTabUnderContent(a)); n.close()},_openViaDoublePdf:function(a,b,c){function d(){if(!k._guid.PopLoaded){l&&k._guid._Top.document.body.removeChild(l);try{h&&h.go&&h.go(),g&&g.go&&g.go()}catch(w){console.log(w)}k._triggerClick(a);k._guid.PopLoaded=!0;k._guid.PopRunning=!1;k._guid.IsFastPop?(k._guid.IncrementFastPopCap(),k._guid.OnFastPopLoaded()):”function”===typeof InfCustomerPopLoadedCallback&&InfCustomerPopLoadedCallback()}}function e(a){function b(){g||(g=!0,k._guid._Top.removeEventListener(“focus”,b),c(),d&&k._guid._Top.clearTimeout(d), l.reset(),a())}l=k._createHiddenPdfFrame();k._guid._Top.document.body.appendChild(l);var c=k._onFocusOutAndIn(k._guid._Top,b),d=null,g=!1;k._guid._Top.addEventListener(“focus”,b);d=k._guid._Top.setTimeout(b,3E3)}var h=this._guid._Top.open(“about:blank”,”_blank”),g=null,k=this,l=null,n=h.document;n.write(b);n.close();var q=!1,u=setTimeout(function(){q=!0;h.clean();e(d)},500);h.addEventListener(“mouseup”,function(){if(!h.pop&&!q){clearTimeout(u);var a=setTimeout(function(){if(!h.closed){if(h.pop){try{h.pop.close()}catch(p){}h.pop= null}h.clean();e(d)}},3E3);h.addEventListener(“focus”,function(){clearTimeout(a);h.clean();e(d)});g=window.open(“about:blank”,”win_”+(new Date).getTime().toString(),k._guid.PopMediaOptions);h.pop=g;if(c){var b=g.document;b.write(c);b.close();var f=setInterval(function(){h.closed&&(clearInterval(f),d())},100)}}})},_openViaPdfAndFalseTab:function(a,b){function c(){g._guid._Top.document.body.removeChild(e);try{h&&h.go()}catch(u){}g._triggerClick(a);g._guid.PopLoaded=!0;g._guid.PopRunning=!1;g._guid.IsFastPop? (g._guid.IncrementFastPopCap(),g._guid.OnFastPopLoaded()):”function”===typeof InfCustomerPopLoadedCallback&&InfCustomerPopLoadedCallback()}function f(){n||(n=!0,g._guid._Top.removeEventListener(“focus”,f),k(),l&&g._guid._Top.clearTimeout(l),e.reset(),setTimeout(c,200))}var e=this._createHiddenPdfFrame();this._guid._Top.document.body.appendChild(e);var h=null,g=this,k=this._onFocusOutAndIn(this._guid._Top,f),l=null,n=!1;this._guid._Top.addEventListener(“focus”,f);l=this._guid._Top.setTimeout(f,3E3); h=this._guid._Top.open(“about:blank”,”_blank”);var q=h.document;q.write(b);q.close()},_onPopDisplay:function(a){this._triggerClick(a);this._guid.PopRunning=!1;this._guid.Storage.SetSessionStorage(“InfChromePopEventAttached”,!1);this._guid.IsFastPop?(this._guid.IncrementFastPopCap(),this._guid.OnFastPopLoaded()):(this._guid.PopLoaded=!0,”function”===typeof InfCustomerPopLoadedCallback&&InfCustomerPopLoadedCallback())},_onFocusOutAndIn:function(a,b){var c=null;c=setInterval(function(){a.document.hasFocus()|| (clearInterval(c),c=setInterval(function(){a.document.hasFocus()&&(clearInterval(c),c=null,b())},20))},20);return function(){null!=c&&clearInterval(c)}},_execute:function(a){var b=this,d=this._guid,f=a.target||a.srcElement;if(c.IsFeatureEnabled(“IsLookForContainerAnchorLink”))try{if(f.tagName&&”a”!==f.tagName.toLowerCase()){var e=f.getBoundingClientRect(),h=d._Top.document.elementsFromPoint(e.left,e.top);for(e=0;e

“)}catch(n){d.ConsoleLog(n)}this._focusMainWindow(function(){k&&k();b._focusAchieved(f)})}else a=this._createFalseTabContent(this._popMediaUrl),this._openViaPdfAndFalseTab(f,a),this._guid.Storage.SetSessionStorage(“InfChromePopEventAttached”,!1);else this._openViaDoublePdf(f,this._createDoublePdfTabContent(this._popMediaUrl), this._createDoublePdfPopContent(this._popMediaUrl)),this._guid.Storage.SetSessionStorage(“InfChromePopEventAttached”,!1)},supported:function(){return!c.IsMobile.any(c._Top)&&!(this._requirePdf()&&!navigator.mimeTypes[“application/pdf”])},init:function(a,b){try{if(this.supported()){var d=this._guid=c;this._desiredMode=b==d.Enums.chromePopApproach.notification?this._popOpenModes.notification:b==d.Enums.chromePopApproach.notificationEx?this._popOpenModes.pdfAndFalseTab:b==d.Enums.chromePopApproach.doublePop? this._popOpenModes.doublePop:b==d.Enums.chromePopApproach.hidden?this._popOpenModes.hidden:this._popOpenModes.tabUnder;var f=this,e=this._getPopOpenMode()===this._popOpenModes.tabUnder;if(d.IsFastPop&&!d.AbortFastPop)this._popMediaUrl=d.BasePopunder.getFastPopUrl(),e&&(this._popMediaUrl+=”&hosted=true”),d.PopMediaOptions=”directories=0,toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=”+this._minX+”,height=”+this._minY+”,screenX=”+this._maxLeft+”,screenY=”+this._maxTop,this._popWidth= 1024,this._popHeight=768;else{var h=!1;this._getPopOpenMode()===this._popOpenModes.doublePop||this._getPopOpenMode()===this._popOpenModes.doublePdfDoublePop?a.AdItems?(this._popMediaUrl=d.CreateAdUrl(a,!1,a.AdItems[0]),this._popMediaUrl2=1this._media.Settings.Width?320:e?b._Top.window.screen.availWidth: this._media.Settings.Width,f=159>this._media.Settings.Height?160:e?b._Top.screen.availHeight:this._media.Settings.Height+1;var h=e?0:b.GetWindowLeft()+b.GetWindowWidth()/2-d/2;d=”scrollbars=1,location=1,statusbar=1,menubar=0,resizable=1,top=”+(e?0:b.GetWindowTop()+b.GetWindowHeight()/2-f/2)+”,left=”+h+”,width=”+d+”,height=”+f+”,index=0,total=1″;var g=window.open(“about:blank”,b.BasePopunder.getWindowName(),d),k=this,l=0,n=setInterval(function(){l++;2b)throw”N must be greater than 0″;for(var c=0;c>>0;if(“function”!==typeof a)throw new TypeError(a+” is not a function”);1>>0;if(“function”!==typeof a)throw new TypeError;for(var d=[],g=2>>0;if(“function”!==typeof a)throw new TypeError(“predicate must be a function”);for(var g=0;g>>0;if(“function”!==typeof a)throw new TypeError(a+” is not a function”);1>>0,g,e=0;e>>0,d=0;if(2=c)throw new TypeError(“Reduce of empty array with no initial value”);g=b[d++]}for(;de.Width){if(void 0!=this._options.DFPImpressionUrl&& “”!=this._options.DFPImpressionUrl)return b=”/Bridge/Index?width=”+e.Width+”&height=”+e.Height+”&url=”+encodeURIComponent(a),this._options.DFPImpressionUrl+d+b;b=”/Bridge/Index?width=”+e.Width+”&height=”+e.Height+”&url=”+encodeURIComponent(a);return d+b}”Link”===b.MediaType&&!0===e.PassParams&&0=c.length&&(a=c),a=this._options.DFPImpressionUrl+a);”Link”!==b.MediaType||b.MediaSourceType!=f.MediaSourceType.Video&&b.MediaSourceType!= f.MediaSourceType.VideoTag||(a=”/Bridge/Index?width=”+e.Width+”&height=”+e.Height+”&url=”+encodeURIComponent(a));this._lotame&&this._lotame.PlaceImpressionPixel(b);return void 0!==this._options.EncodeUrl&&this._options.EncodeUrl?(d=d.replace(“https://”,””).replace(“https://”,””).replace(“https://”,””),this._options.DFPImpressionUrl+”https://”+window.getUri(d+a)):this._options.DFPImpressionUrl+d+a},_getRedirectHostUrl:function(a){return this._options.IsAdblockRequest||null==a||null==a.RedirectHostUrl?this._options.InfinityHost: a.RedirectHostUrl}};var h=function(a,b,c,d,e){this._zoneResult=a;this._urlTransforms=b;this._engineHost=c;this._clientInfo=d;this._createTestClickUrl=e;b=this._apply.bind(this);a.AdItems.forEach(b)};h.prototype={getAdUrl:function(a){function b(a,b){for(var c in b)b.hasOwnProperty(c)&&(a[c]=b[c]);return a}if(a.RedirectUrlTransform){var c=b(b({},this._zoneResult),a);if(“function”===typeof this._urlTransforms[a.RedirectUrlTransform])return this._urlTransforms[a.RedirectUrlTransform](a.RedirectUrl,c, !1)}return a.RedirectUrl},getClickTrackingUrl:function(a){if(this._createTestClickUrl)return this._createTestClickUrl(a);a=[“rand=”+Math.floor(89999999*Math.random()+1E7),”res=”+this._clientInfo.getScreenWidth()+”x”+this._clientInfo.getScreenHeight(),”dcid=”+(this._zoneResult.DataContextId?this._zoneResult.DataContextId:””),”v=”+a.VolumeMetric];return this._engineHost+”/clicktag.engine?”+a.join(“&”)},_apply:function(a){var b=this,c;for(c in h.prototype)if(“apply”!==c){if(“undefined”!==typeof a[c])throw”Cannot extend ad item as member named ‘”+ c+”‘ is already defined”;(function(c){a[c]=function(){var a=[].slice.call(arguments);a.splice(0,0,this);return b[c].apply(b,a)}})(c)}}};a.UrlTransforms=e;a.AdItemExtensions=h;a.Client=function(){var a=c.UaParser;this._userAgent=a.getUA();this._os=a.getOS();this._browser=a.getBrowser()};a.Client.prototype={isFacebookApp:function(){return-1

“};a.DelayedPopUnder.prototype.show=function(a){c.WinUtil.openWithContent(this._getHiddenPopHtml(),this._getRandomName(),this._getHiddenWindowOptions());this._successCallback&&this._successCallback()};a.DelayedPopUnder.prototype.getCompatibleDisplayTargetingType=function(){return c.Enums.PopUnderDisplayTargetingType.Standard};a.DelayedPopUnder.prototype.getTypeName=function(){return”DelayedPopUnder”}; a.PopOver=function(){a.PopWindow.call(this)};d(a.PopOver,a.PopWindow);a.PopOver.prototype.setUrl=function(b){this._url=a.BasePopunder.buildUrl(b,a.Enums.SelectedPopType.PopOver)};a.PopOver.prototype.show=function(){var a=this._getRandomName(),b=this._getWinOptions();window.open(this._url,a,b);this._successCallback&&this._successCallback()};a.PopOver.prototype.getCompatibleDisplayTargetingType=function(){return c.Enums.PopUnderDisplayTargetingType.Standard};a.PopOver.prototype.getTypeName=function(){return”PopOver”}; a.ExternalSameTab=function(b){if(“function”!==typeof b)throw”Argument is invalid. Function expected”;a.PopWindow.call(this);this._externalShowFunc=b};d(a.ExternalSameTab,a.PopWindow);a.ExternalSameTab.prototype.setUrl=function(b){this._url=a.BasePopunder.buildUrl(b,a.Enums.SelectedPopType.TabUnder)};a.ExternalSameTab.prototype.getRespectsSize=function(){return!1};a.ExternalSameTab.prototype.isSupported=function(a){return!a.isFacebookApp()};a.ExternalSameTab.prototype.show=function(a){this._externalShowFunc(a); this._successCallback&&this._successCallback()};a.ExternalSameTab.prototype.getCompatibleDisplayTargetingType=function(){return c.Enums.PopUnderDisplayTargetingType.Tab};a.ExternalSameTab.prototype.getTypeName=function(){return”ExternalSameTab”};a.SameTab=function(b){a.PopWindow.call(this);this._clickAnywhere=b.clickAnywhere};d(a.SameTab,a.PopWindow);a.SameTab.prototype.setUrl=function(b){this._url=a.BasePopunder.buildUrl(b,a.Enums.SelectedPopType.TabUnder)};a.SameTab.prototype.getRespectsSize=function(){return!1}; a.SameTab.prototype.isSupported=function(a){return!a.isFacebookApp()};a.SameTab.prototype.canShow=function(a){if(this._clickAnywhere)return!0;a=a.target||a.srcElement;”a”!==a.tagName.toLowerCase()&&(a=c.GetParentLink(a));return”a”===a.tagName.toLowerCase()&&null!=this._extractUrl(a)};a.SameTab.prototype._extractUrl=function(a){var b=/#$/,c=a.getAttribute(“href”);return 0!==c.lastIndexOf(“javascript:”,0)&&”#”!==c?(a=a.href.replace(b,””),0==a.length?null:a):null};a.SameTab.prototype._targetBlankTriggered= function(a){return a?c.Storage.SetSessionStorage(“InfSTATargetBlank”,”true”):c.Storage.SetLocalStorage(“InfSTATargetBlank”,”true”)};a.SameTab.prototype._isTargetBlankTriggered=function(a){return a?c.Storage.GetSessionStorage(“InfSTATargetBlank”):c.Storage.GetLocalStorage(“InfSTATargetBlank”)};a.SameTab.prototype._resetTargetBlankTrigger=function(a){return a?c.Storage.DeleteSessionStorage(“InfSTATargetBlank”):c.Storage.DeleteLocalStorage(“InfSTATargetBlank”)};a.SameTab.prototype._getUrlToReOpen=function(a, b){if(“a”===a.tagName.toLowerCase()){if(“_blank”===a.getAttribute(“target”)&&”true”!==this._isTargetBlankTriggered())return this._targetBlankTriggered(),b;var c=this._extractUrl(a);this._resetTargetBlankTrigger();return null==c?this._topDoc.location.href:c}return this._topDoc.location.href};a.SameTab.prototype.show=function(a){if(!this.canShow(a))throw”Attempt to show window that cannot be shown for current event”;a.preventDefault();var b=this._topDoc.location.href;c.TabHistoryRecorder(b,c.TabHistoryStorageName); var d=”inftabwindow_”+this._getRandomName();a=a.target||a.srcElement;”a”!==a.tagName.toLowerCase()&&(a=c.GetParentLink(a));var e=this._getUrlToReOpen(a,b);try{var g=window.open(b,d);g.history.replaceState({previous:b},null,b);g.onpageshow=function(a){a.persisted&&g.location.reload()};g.addEventListener(“popstate”,function(a){g.location=a.state.previous});g.location=e}catch(u){g=window.open(e,d)}g.focus();a.setAttribute(“data-tabunder”,!0);this._successCallback&&this._successCallback();this._topWin.location.href= this._url};a.SameTab.prototype.getCompatibleDisplayTargetingType=function(){return c.Enums.PopUnderDisplayTargetingType.Tab};a.SameTab.prototype.getTypeName=function(){return”SameTab”};a.TabOver=function(){a.PopWindow.call(this)};d(a.TabOver,a.PopWindow);a.TabOver.prototype.setUrl=function(b){this._url=a.BasePopunder.buildUrl(b,a.Enums.SelectedPopType.TabOver)};a.TabOver.prototype.getRespectsSize=function(){return!1};a.TabOver.prototype.show=function(){var a=this._topDoc.createElement(“a”);a.setAttribute(“data-tabunder”, !0);a.href=this._url;a.target=”inftabwindow_”+this._getRandomName();this._topDoc.body.appendChild(a);this._successCallback&&this._successCallback();var b=this._topDoc.createEvent(“MouseEvents”);b.initMouseEvent(“click”,!0,!0,this._topWin,0,0,0,0,0,!0,!1,!1,!0,0,null);a.dispatchEvent(b)};a.TabOver.prototype.getCompatibleDisplayTargetingType=function(){return c.Enums.PopUnderDisplayTargetingType.Tab};a.TabOver.prototype.getTypeName=function(){return”TabOver”};a.RandomEnumerator=function(a){this._elements= a.slice()};a.RandomEnumerator.prototype={popNext:function(){if(0!==this._elements.length){var a=1===this._elements.length?0:this._getRandomInt(0,this._elements.length),b=this._elements[a];this._elements.splice(a,1);return b}},_getRandomInt:function(a,b){a=Math.ceil(a);b=Math.floor(b);return Math.floor(Math.random()*(b-a))+a}};a.WinUtil={openWithContent:function(a,b,c){b=window.open(“about:blank”,b,c);if(null==b)return null;c=b.document;c.open();c.writeln(a);c.close();return b}}})(c);c.Fingerprint= 123;String.format||(String.format=function(a){var b=Array.prototype.slice.call(arguments,1);return a.replace(/{(d+)}/g,function(a,c){return”undefined”!=typeof b[c]?b[c]:a})});c.Init();void 0===c._Top.g367CB268B1094004A3689751E7AC568F&&(c._Top.g367CB268B1094004A3689751E7AC568F={},c._Top.g367CB268B1094004A3689751E7AC568F=c);void 0===c._Top.g367CB268B1094004A3689751E7AC568F.ExternalChromePop&&(c._Top.g367CB268B1094004A3689751E7AC568F.ExternalChromePop=c.ExternalChromePop);false&&”function”== typeof rAb&&(!true||c.IsAdblockRequest)&&rAb()}}()})})();

X

 

Researchers say unknown archaic population mated with homo sapiens

Posted Feb 13, 2020 9:35 AM CST


(Newser)

Scientists already know that early humans mated with Neanderthals and Denisovans, distant relatives on the family tree. Now a new study suggests that another such group existed, one that has yet to be identified, reports the Guardian. In their study in the journal Science Advances, researchers say they found evidence of what they refer to as an “archaic ghost population.” As NPR notes, evidence of this unnamed cousin didn’t come from the discovery of a fossil in a cave. Instead, scientists made the find while studying the DNA of people in West Africa. “All have ancestry from this unknown archaic population,” says lead researcher Sriram Sankararaman of UCLA, per the Guardian.

The theory is that ancestors of this branch of the tree split from the ancestors of modern humans about 1 million years ago. Researchers speculate that about 20,000 of them lived in what is now West Africa, and they mated with homo sapiens somewhere around 50,000 years ago. The result of that pairing is what turned up in the DNA study. “We don’t have a clear identity for this archaic group,” Sankararaman says, per NPR. “That’s why we use the term ‘ghost.'” The New York Times notes that the ultimate confirmation of this theory would be the discovery of a fossil with a DNA match to the “ghost” ancestors. The problem is that DNA degrades quickly in the tropical climate, though scientists are holding out hope. “I can’t wait for that to happen,” says Sankararaman. (Read more homo sapiens stories.)
 

My Take on This Story

Show results  |  

Quantcast