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Fear conditioning for contextual/ sound stimulus ...
見た目も同じ、食べるものも同じ、行動も同じ、生息環境も似通っている2匹の生物がいたら、それらは同じ種...
When two animals look the same, eat the same, behave the same way, and live in similar environments, one might expect that they belong to the same spe...