
What are the chances that dinosaurs would have developed human-like abstract intelligence if they hadn’t been wiped out?
Tim Lewis
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Narberth, Pembrokeshire, UK
They have! Articles in ¿ìè¶ÌÊÓÆµ over the years refer to the intelligence of dinosaur descendants.
Birds such as the New Caledonian crow show sophisticated use of tools, as well as the ability to plan ahead. Magpies have demonstrated cunning and deception and many migratory birds have almost miraculous powers of navigation.
Gary Miller
Metamora, Michigan, US
To begin, it must be understood that there is no inevitability for human-like intelligence to evolve. The evolutionary process has no preplanned outcome.
Dinosaurs, had they survived (ancestral birds notwithstanding), wouldn’t necessarily have evolved great intelligence, but if some did, it probably would be more bird-like than human-like owing to dinosaurs’ closer ancestral relationship to birds.
Certainly, some of today’s modern birds are quite intelligent, but presumably they don’t meet the questioner’s qualified definition.
There are an estimated 7 million to 10 million animal species on our planet. If we allow that our form of intelligence is unique, then the odds that it evolved as it did were about 1 in 7 million to 10 million. These are rather long odds. I would predict that the odds of a different kind of animal, especially a dinosaur descendant, ever evolving a similar human-like intelligence are highly unlikely. In reality, the odds are probably incalculable considering the number of variables that would contribute to the same outcome.
Many animals have evolved remarkable intelligence, but intelligence isn’t universal. While it appears to be a useful characteristic, it isn’t always necessary for survival as evidenced by the existence of the many animal species that we don’t consider intelligent.
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