Whale brains are part human

Whale brains are part human
Humpback whales have a type of brain cell seen only in humans, the great apes, and other cetaceans such as dolphins, US researchers report.
This might mean such whales are more intelligent than they have been given credit for, the scientists say.
And it suggests the basis for complex brains either evolved more than once, or has gone unused by most animal species.

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