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True, though I feel compelled to post the standard rebuttal:

> "On the planet Earth, man had always assumed that he was more intelligent than dolphins because he had achieved so much - the wheel, New York, wars and so on - whilst all the dolphins had ever done was muck about in the water having a good time. But conversely, the dolphins had always believed that they were far more intelligent than man - for precisely the same reasons."

That could have more to do with our versatile anatomy than a difference in cognitive capabilities.

But that is exactly the point: the brain draws its cognitive power from the number of inputs and not from mass.

Just think of the human hand or the mimicry we can express and how many muscles and associated sensoric feeds our brain continuously. Mass is relevant, but up to a certain degree.

Aren't these interchangeable?

I mean, yes you got hands and fingers, but they work because they have nerves in them and those are basically extensions of the brain.

"On the internet, nobody knows you're a dog."

;)