Is a fish smart?
According to Culum Brown from Macquarie University, "Fish are more intelligent than they appear. In many areas, such as memory, their cognitive powers match or exceed those of 'higher' vertebrates including non-human primates."
Fish IQ depends heavily on the species of fish. For instance, goldfish tend to be very unintelligent, with IQ's measured in the 30-40 range, while some fish (such as freshwater salmon) have had IQ's measured to be as high as 130.
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