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Politics : Evolution -- Ignore unavailable to you. Want to Upgrade?

To: bob_the_ignoramus who wrote (1076)	10/8/1999 9:44:00 AM
From: TigerPaw	Respond to of 69300

someone with a skull too big for their brain is at a dissadvantage They are only at a dissadvantage if there is a competetor with a greater advantage. For example, in Tanzania there is a tree kangaroo. This animal is built like your normal jumping ground kangaroo of Austrailia but lives in the trees. It is the most clumsy and akward creature you may hope to see, but it is the best that island has to offer and so survives. when scientists tell you that humans only use 4-10% of the brain I don't think any scientists say this. It's the pop wisdom of late night TV and advertising. The idea arises because a portion of the brain can be removed and a person can still function, as in a lobodomy. Humans use all their brain, it's just that the fuctionality is diffuse so losing a bit of brain causes a general degredation that is not always noticed at first. Brains are a facinating area but it would take more than a paragraph to cover it. - it does bring up a point though, it seems that whatever a scientist or doctor may say 100 years ago is trotted out over and over as if it is still held as a truth today. Science is a field that continuously changes and evolves. Good ideas may last a long time, but they are constantly examined and refined. TP