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Today, you\u2019ll 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 

• \u201cScar-free surgery prints living skin (and maybe hair) right into wounds.\u201d by Paul McClure. 2024.  
• \u201cNew bioink promotes growth & regeneration of 3D-printed muscle tissue.\u201d by Paul McClure. 2023.  

Mammoth De-Extinction 

• \u201cWooly mammoth de-extinction inches closer after elephant stem cell breakthrough.\u201d by Sascha Pare. 2024.  
• \u201cScientists Are Reincarnating the Woolly Mammoth to Return in 4 Years.\u201d by Tim Newcomb. 2023.  
• \u201cWhy Are Scientists Trying to Bring Back the Woolly Mammoth?\u201d by Teresa Ehrlich. 2022. 

Learning Happiness 

• \u201cHappiness can be learnt, but we have to work at it - study finds.\u201d University of Bristol. 2024.  
• \u201cUnit information: Science of Happiness.\u201d University of Bristol. Course catalog.  
• \u201cThe Science of Well-Being.\u201d Coursera Course.  
• \u201cThe Science of Happiness Course.\u201d Greater Good Science Center. N.d. 
• \u201cManaging Happiness.\u201d Harvard. Ongoing.  

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