Are Dolphins Really Smart?: The mammal behind the myth by Justin Gregg

By Justin Gregg

How clever are dolphins? Is their verbal exchange method rather as advanced as human language? And are they as pleasant and peaceable as they're made out to be?

Justin Gregg weighs up the claims made approximately dolphin intelligence and separates medical truth from fiction. He offers the result of the most recent study in animal behaviour, and places our wisdom approximately them into viewpoint with comparisons to clinical reports of alternative animals, particularly the crow relations and nice apes. He supplies attention-grabbing bills of the demanding situations of checking out what an animal with flippers and no facial expressions may really be pondering. Gregg's evidence-based procedure creates a entire and up to date research of this attention-grabbing animal so one can entice all these intrigued by means of dolphin behaviour.

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12 Absolute brain size is not the only way of looking at the size issue, however. The funny thing about primate (including human) and dolphin brains is that, while they might not be the biggest brains of all, they deviate rather significantly from the allometric body-scaling rule. 13 A number of metrics of brain size have cropped up that attempt to describe this anomalous observation, which, if humans are used as the baseline, might be a better predictor of intelligence than absolute brain size.

39 EQ ratings can change depending on the data sources and different methods used for calculation, which means comparisons of ratings between studies might be providing spurious results. 40 As it stands, neither EQ nor absolute brain size have established themselves as metrics that can be confidently proclaimed as reliable predictors of animals’ performance on cognitive tests associated with intelligence. 41 The (relative) size of the dolphin brain is not, by itself, a variable that tells us anything concrete about the nature of dolphin intelligence.

13 A number of metrics of brain size have cropped up that attempt to describe this anomalous observation, which, if humans are used as the baseline, might be a better predictor of intelligence than absolute brain size. 14 Any of these measures have, at one time, been supplied as anatomical evidence for dolphin intelligence, but it is EQ that is most commonly cited these days. “If we use relative brain size as a metric of ‘intelligence’ then one would have to conclude that dolphins are second in intelligence to modern humans,”15 argued Lori Marino, one of the leading authorities on dolphin neuroanatomy.

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