Today, you’ll learn about a skin printer that could lead to scar-free surgeries, the possibility of bringing the wooly mammoth back to life, and how to work at being happy.  

Printed Skin 

• “Scar-free surgery prints living skin (and maybe hair) right into wounds.” by Paul McClure. 2024.  
• “New bioink promotes growth & regeneration of 3D-printed muscle tissue.” by Paul McClure. 2023.  

Mammoth De-Extinction 

• “Wooly mammoth de-extinction inches closer after elephant stem cell breakthrough.” by Sascha Pare. 2024.  
• “Scientists Are Reincarnating the Woolly Mammoth to Return in 4 Years.” by Tim Newcomb. 2023.  
• “Why Are Scientists Trying to Bring Back the Woolly Mammoth?” by Teresa Ehrlich. 2022. 

Learning Happiness 

• “Happiness can be learnt, but we have to work at it - study finds.” University of Bristol. 2024.  
• “Unit information: Science of Happiness.” University of Bristol. Course catalog.  
• “The Science of Well-Being.” Coursera Course.  
• “The Science of Happiness Course.” Greater Good Science Center. N.d. 
• “Managing Happiness.” Harvard. Ongoing.  

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