面白い実験を行った研究者がいる。その実験では、ある魚の顔に汚れをつけて鏡を見せた。すると、その魚は砂で汚れを落とすような動きをしてから、また鏡を見た。これは、自分の顔についた汚れを落とし、その後、汚れが消えたかどうかを確認する動作なのだそうだ。鏡の中にいる自分を見て、それが自分自身だとわかるのは、サルなどの頭のいい動物だけだと考えられていた。しかし、魚にもそれができるものがいるのだと、この研究者は言っている。
AI translation, cross-checked between two models.
A researcher conducted an interesting experiment. In the experiment, a mark of dirt was placed on a fish’s face, and the fish was shown a mirror. The fish then made movements as though rubbing the dirt off with sand and looked in the mirror again. This is said to be an action in which the fish removes the dirt from its own face and then checks whether the dirt is gone. It had been thought that only intelligent animals such as monkeys could look at themselves in a mirror and understand that the image was their own reflection. However, this researcher says that some fish are capable of doing the same thing.
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