ざつがく・どっと・こむ
ちょっと知的な雑学&トリビア

失ってこそヒトになった

2006年2月17日 【雑学なメモ
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ScienceDaily: Less Is More, Gene Study Shows
It’s also possible that we humans lost some genes along the way, and those losses provided opportunities for changes that otherwise could not have occurred. For example, scientists have shown that over the course of evolution, humans lost a gene that produces a particular jaw muscle protein. Perhaps the loss of that gene gave us smaller jaw muscles, making room in our skulls for bigger brains.
あごの筋肉に関連する遺伝子を失ったために、頭蓋骨に脳が大きくなる余裕を持つようになったなど、チンパンジーとヒトの差は、何かを獲得したり突然変異したのではなく、失ったからではないかという説についての最新の研究。

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U of M News Service
“Women are more likely to rely on enumeration,” said Brown, a visiting research scientist at the University of Michigan Institute for Social Research. “They tend to say, ‘I just know,’ and if you ask them to explain how they know, they say, ‘Well, there was John, Tom, etc.’ This is a […]

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Nicholas Epley
When what you type isn’t what they read、Egocentrism over emailなど、メールで伝えたい内容の半分くらいは誤解されているっていう研究。

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