Biology
        
          
            Why do “young blood” transfusions help aging mice?        
        
        
            Young blood transfusions may combat signs of aging in older mice by increasing the production of a specific protein: Klotho.        
        
    
        
          
            10 surprising new things we’ve learned about death        
        
        
            Modern science has demystified death by divulging its biological processes, but many questions remain.        
        
    
        
          
            Scientists got an animal to breathe without oxygen        
        
        
            Scientists discovered a way to keep tadpoles alive, even without environmental oxygen — by injecting photosynthetic algae into their brains.         
        
    
        
          
            Lizard regenerates perfect tail thanks to stem cells        
        
        
            A USC study that prompted lizards to regenerate tails that were “perfect” could help facilitate breakthroughs in human regeneration.        
        
    
        
          
            The bold plan to bring back the American chestnut        
        
        
            Researchers plant a small experimental orchard of hundreds of transgenic American chestnut trees near the coast of Maine, to restore the species.        
        
    
        
          
            Farmers in England begin massive DIY “rewilding” effort        
        
        
            Farmers in East Anglia are organizing what may be England’s largest rewilding project.         
        
    
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        Challengers    
          
            26-year-old builds $8,000 mind-controlled bionic arms        
        
        
            Bionic arms used to cost $80,000. Now, a young engineer has lowered the cost by over 90%.        
        
    
        
          
            DeepMind releases massive protein structure database        
        
        
            DeepMind is releasing a massive database of protein structure predictions that includes all the molecules in the human proteome.        
        
    
        
          
            The world’s first needle-free diabetes test        
        
        
            A needle-free diabetes test that measures glucose levels from saliva, not blood, could be ready for consumers as soon as 2023.        
        
    
        
          
            Castration linked to younger DNA and biological age        
        
        
            A study measuring biological age in castrated sheep has yielded a discovery that could inform anti-aging research for people.