久久精品视频国产片十八,中文字幕免费伦费影视在线观看,亚洲欧美天堂在线,久久丝袜国产精品视频

  • <address id="dtfhz"></address>
    

  • 

  • <td id="dtfhz"></td>
    

    
  
    
    
  
    

    


    
  
    
    
    
      
    
        
    
          
    
            
    

    




              
    
            
    
              
    
                
    
                  
     本站公告：視頻中的廣告請(qǐng)勿相信，否則后果自負(fù)!
    
                
    
              
    
            
    
            
    
              
    人類進(jìn)化1：混沌初開
    
			                
    類型：紀(jì)錄片美國(guó)2009詳情 
    
              
            
    
          
    
        
    
      
    
    
    
    


    
    
      
    
        
    
          
    卡頓請(qǐng)切換線路,支持手機(jī)看片
            
    在線播放
    
          
    
        
    
        
      
    
    
    
        
    
      
    
        
    
          
    卡頓請(qǐng)切換線路,支持手機(jī)看片
            
    播放組四
    
          
    
        
    
        
      
    
    
    
       
				
    
	
    
		
    
			
    
				
    
					
					劇情簡(jiǎn)介
				
    						
			
    																		
		
    
		
    
			
    
				  Wheredidwecomefroccc?Whatmakesushuman?Anexplosionofrecentdiscoveriesshedslightonthesequestions,andNOVA\'scomprehensive,three-partspecial,\"BecomingHuman,\"examineswhatthelatestscientificresearchrevealsaboutourhominidrelatives.Part1,\"FirstSteps,\"examinesthefactorsthatcausedustosplitfromtheothergreatapes.Theprogramexploresthefossilof\"Selam,\"alsoknownas\"Lucy\'sChild.\"PaleoanthropologistZerayAlemsegedspentfiveyearscarefullyexcavatingthesandstone-embeddedfossil.NOVA\'scamerasaretheretocapturetheunveilingoftheface,spine,andshoulderbladesofthis3.3million-year-oldfossilchild.AndNOVAtakesviewers\"insidetheskull\"toshowhowourancestors\'brainshadbeguntochangefromthoseoftheapes.Whydidleapsinhumanevolutiontakeplace?\"FirstSteps\"exploresaprovocative\"bigidea\"thatsharpswingsofclimatewereakeyfactor.