Whale brains are big on heating, not intelligence


Whale brains are big on heating, not intelligence

A study has found that the size of whale and dolphin brains is all about keeping warm, and it could save them in future


Humans may retain the position as the world’s most intelligent species after scientists at Johannesburg’s University of the Witwatersrand (Wits) found evidence that exceptionally large brains of whales and dolphins are for warmth, not smarts.

Some whales have brains six times heavier than that of the average human, a fact that has led people to believe them highly intelligent or, as Douglas Adams’ fictional Hitchhiker’s Guide to the Galaxy proposed, vastly more intelligent than us.

But dolphins and whales won’t be leaving Earth in their own space craft any time soon...

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