なぜ脳は小さくなったのか？（大きくなったのではない？）【脳の進化のミステリー】

As you know, the human brain has grown explosively over millions of years. And this enlarged brain has put humans at the top of the food chain, and even today, humans live differently from other animals, thanks to their enlarged brains. For this reason, when we imagine humans in the future, we tend to imagine extremely large brains. But what would you think if you heard that the human brain has actually been getting smaller over the past tens of thousands of years? Today, we're talking about the shrinking of human brains! #Human #Brain #Evolution ================================= [Reference materials] Maciej Henneberg, (1988). "Decrease of Human Skull Size in the Holocene." https://bit.ly/3Oywe23 John Hawks, (2011). "Selection for smaller brains in Holocene human evolution." Clark Spencer Larsen et al., (2019). "Bioarchaeology of Neolithic Çatalhöyük reveals fundamental transitions in health, mobility, and lifestyle in early farmers." HelenM.Leach, (2003). "Human Domestication Reconsidered." A M Balcarcel et al., (2021). "Intensive human contact correlates with smaller brains: differential brain size reduction in cattle types." https://bit.ly/3ye8sD2 Jeremy M. DeSilva et al., (2021). "When and Why Did Human Brains Decrease in Size? A New Change-Point Analysis and Insights From Brain Evolution in Ants." [Images] ShutterStock, etc. [BGM] (1)Chonklap (2)Wild Side (3)Days Pass (4)Restless Rebels (5)Howling at the Moon (6)Chains [Narrator] Yuki Moriguchi Twittr:   / hiroki_kansei   [Official SNS] Twitter:   / qv3px5yydj6a3nl