about_twelve_thousand_years_ago

*1

一万二〇〇〇年前、脳の重量を一〇パーセントほど減らして現生人類は誕生した。

The Wolf in the Parlor: The Eternal Connection Between Humans and Dogs

The Wolf in the Parlor: The Eternal Connection Between Humans and Dogs

The Wolf in the Parlor: How the Dog Came To Share Your Brain

The Wolf in the Parlor: How the Dog Came To Share Your Brain