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It can be difficult to distinguish between the different fish in a large shoal in the sea. But the researchers agree that they are teachable individuals, and that they are fully capable of feeling pain.
“They have a brain that works just like our brain does, really,” says Svante Winberg, professor of physiology at Uppsala University.
Why, then, do we find it more difficult to relate to the fish than to other animals? Could it be because we don’t see what’s going on underwater?