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Need More Brain: Grow It On Your Feet - Printable Version

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Need More Brain: Grow It On Your Feet - John L - 12-13-2011

If you are a spider, this is common occurrence.

A WHOLE NEW MEANING FOR THINKING ON YOUR FEET

[Image: Nephila.jpg]

Quote:The brains of tiny spiders are so large that they fill their body cavities and overflow into their legs, STRI researchers report. As part of ongoing research to understand how miniaturization affects brain size and behavior, researchers measured the central nervous systems of nine species of spiders, from rainforest giants to spiders smaller than the head of a pin. As the spiders get smaller, their brains get proportionally bigger, filling up more and more of their body cavities.

“The smaller the animal, the more it has to invest in its brain, which means even very tiny spiders are able to weave a web and perform other fairly complex behaviors,” said William Wcislo, staff scientist at the Smithsonian Tropical Research Institute in Panama. “We discovered that the central nervous systems of the smallest spiders fill up almost 80 percent of their total body cavity, including about 25 percent of their legs.”



RE: Need More Brain: Grow It On Your Feet - jt - 12-14-2011

If humans had to work as hard as spiders, perhaps human brains would fill up 80% of their body cavity.


RE: Need More Brain: Grow It On Your Feet - Fredledingue - 12-22-2011

If we could turn 80% of our body fat into brain cells, we all would be geniuses.

Spiders are very intelligent animal to do so.


RE: Need More Brain: Grow It On Your Feet - John L - 12-22-2011

(12-22-2011, 01:34 PM)Fredledingue Wrote: If we could turn 80% of our body fat into brain cells, we all would be geniuses.

Spiders are very intelligent animal to do so.

Wait Fred, are you saying they 'do so' because they are very intelligent? Or are you saying that they are intelligent because Natural Selection has given those a 'select' advantage?




RE: Need More Brain: Grow It On Your Feet - Gunnen4u - 12-22-2011

I would hope he means the latter.