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How Come We Are So Smart?

Isnt bigger better?

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#1 Mike Summers

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Posted 16 August 2012 - 11:16 AM

The human brain weighs approximately 3lbs. The brain of one our alleged closest living ancestors, the chimp weighs less than one pound.

The brain of a sperm wale weighs in at 17.5 lbs. An elephant brain weighs 10 or so lbs. What is the evolutionary reason for the humans brain being so much smarter than these larger brained animals?

#2 agnophilo123

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Posted 12 November 2012 - 03:07 PM

A brain being bigger no more necessitates that it be smarter than a computer being bigger makes it more powerful (often the inverse is true). Also a whale's brain is probably largely made up of water and other dead weight because it's body size is huge.

As for why we are intelligent, our intelligence is not uniquely human, it has developed over hundreds of millions of years as evidenced by the plethora of species that have most of the same social instincts, emotions, senses etc that we do. It's not a matter of "intelligence" so much as it is having the right combination of attributes which allow us to make use of that intelligence. The real intelligence of our species is not individual intellect, but our ability to communicate, work together and build on our successes. This is why for instance when the printing press was invented technology rapidly advanced like it never had before. And in humans I'm sure when our ability to communicate advanced it had a similar "hitting the turbo button"-like effect. As did probably the ability to manipulate tools, cool food (doubles the calories and makes it easier to digest) and many other advances.

#3 gilbo12345

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Posted 16 November 2012 - 03:15 AM

1. A brain being bigger no more necessitates that it be smarter than a computer being bigger makes it more powerful (often the inverse is true).

2.Also a whale's brain is probably largely made up of water and other dead weight because it's body size is huge.

3. As for why we are intelligent, our intelligence is not uniquely human, it has developed over hundreds of millions of years

4. as evidenced by the plethora of species that have most of the same social instincts, emotions, senses etc that we do. It's not a matter of "intelligence" so much as it is having the right combination of attributes which allow us to make use of that intelligence.

5. The real intelligence of our species is not individual intellect, but our ability to communicate, work together and build on our successes. This is why for instance when the printing press was invented technology rapidly advanced like it never had before. And in humans I'm sure when our ability to communicate advanced it had a similar "hitting the turbo button"-like effect. As did probably the ability to manipulate tools, cool food (doubles the calories and makes it easier to digest) and many other advances.


1. To the naturalist it does since increased brain mass = more nerves = more circuitry for the brain to function, however density is another factor to consider.

2. Is this "probably" of possibly, since you've given no evidence so not sure how an unsubstantiated claim such as this be more probable as its opposite.

3. This is your opinion

4. Having lots of animals with social capacity doesn't give evidence for "millions of years"

5. However to think up the printing press (or anything else for that matter) requires individual intelligence, which is something animals do not have... Additionally many of these social animals can communicate therefore its evidence against you claims here that they are not advanced beyond others and keep on advancing?




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