Mammals’ brains: new research shows bigger doesn’t always mean smarter – The Conversation AU

If a friend boasts of having a big-brained dog, your reaction is probably not to ask relative to what?. You would simply assume your friend thinks their dog is pretty smart. But are we always right to equate big brains with greater intelligence?
In a study published today in Science Advances, we and our colleagues describe how the relationship between large brains and intelligence in mammalian evolution isnt as straightforward as you might assume.
A key problem is that, in evolutionary terms, a…

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