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Since evolutionary thinking permeates the entire spectrum of biology, scientists are consistently surprised by the mental abilities of creatures thought to be lower on the so-called tree of life. In this mythical tree of evolutionary progression, apes are thought to be at the top of the intelligence scale—second only to humans. But now we have numerous examples of other land creatures, most notably birds, that rival or exceed apes’ mental capabilities.To finish reading, swim on over to "Fish as Smart as Apes?"
But what about fish, the supposed ancient ancestors of all land-dwelling animals? With such a low position on the tree of life, they can’t be nearly as smart as apes—can they? Perhaps a few captivating and evolution-negating examples are in order.