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How big would a fly brain be?

How big would a fly brain be if the fly was the size of a human

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Perhaps the brain will stay the same size as a regular fly's brain. Taller people don't mean bigger brains.

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I meant proportionally
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No one can really tell for sure but guessing is an option. I think maybe still smaller than the human Brian. Half a fist maybe at the extreme most.

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maybe the same size , not for sure. ya goof

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I guess you'd have to know how big a fly's brain is to begin with, then figure the brain to weighhttp://en.wikipedia.org/wiki/Brain-to-body_mass_ratiot ratio and compare that to a human, The article says you can't figure a creatures intelligence of the brain to body weight ratio.

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You should look at the body to brain ratio.
I don't have a number exactly for flies but the ratio for insects is usually bigger than human. The largest would be small ants with more than five times the ratio. The ratio is 1:40 for average human. So I would assume it would be something like 1:10 or more. So it would make something like 5 kg or more.

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they are 3 times smaller than this period. that's a regular fly brain

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Smaller than yours

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