Mixed messages: is research into human-monkey embryos ethical?
        
            By Philip Ball, 
                The Guardian
             | 05. 15. 2021
        
                    
                                    
                    
                                                                                                                                    
                                                                            
                              
    
  
  
    
  
          
  
      
    
            When King Minos of Crete was given a magnificent bull by the sea god Poseidon for a sacrifice, he could not bring himself to kill it. In anger, Poseidon enchanted Minos’s wife Pasiphaë to be filled with lust for the creature. The result of their trans-species mating was the bull-headed monster the Minotaur.
Hybrids of humans and animals throng within myth and legend: centaurs, mermaids, goat-footed Pan. We’re both fascinated and uneasy about the boundary that separates us from other animals – and whether it is leaky.
So the recent report by a team in the US and China of embryos that contain a mixture of human and monkey cells mines an ancient seam of anxiety. What strange hybrids are we creating, and why?
Living entities containing the cells or tissues of more than one species are technically called chimeras – the name of a legendary monster that Homer described in The Iliad as “lion-fronted and snake behind, a goat in the middle”.
We’ve long known that these mosaic-style animals are possible. A chimera with a mixture of goat and...
 
       
 
  
 
    
    
  
   
                        
                                                                                
                 
                                                    
                            
                                  
    
  
  
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[OHSU News/Christine Torres Hicks]
On September 30th, a team of 21 scientists from Oregon Health & Science University (OHSU) published a significant paper in Nature Communications, with a scientifically accurate but, to many, somewhat abstruse headline:
Induction of experimental cell division to generate cells with reduced chromosome ploidy
The lead authors were Shoukhrat Mitalipov, recently described here as “a push-the-envelope biologist,” and his long-term colleague Paula Amato. (Recall that in July the pair had co-published with...
 
       
 
 
  
      
    
    
                
                        
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
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                                                           By Rob Stein,  NPR | 09.30.2025
                                                        
     
    
    
            Scientists have created human eggs containing genes from adult skin cells, a step that someday could help women who are infertile or gay couples have babies with their own genes but would also raise difficult ethical, social and legal issues...