*****KatKwiz! - April 28 - Big KatKwery winner!*****

Originally Posted by glitch

I guess with the brain thing its just one of those "size doesn't matter moments"

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Good one!

Originally Posted by Persi & Alley

If your cat weighed ten pounds and had a brain that weighed 8 ounces, then that cat's brain would weigh 5% of its body weight. If that same cat's owner weighed 200 pounds and had a brain that weighed 30 pounds, then the human's ratio would be 15%, or 3 times that of a cat.

Looking at the question, the last sentence would have to read: or 3 times that of a cat, not 40 times that of a cat.

KatKwery:
Some people still use this ratio as a fast gauge of intelligence, do you give it any creedence? Are you twice as smart as a cat or forty times as a cat? Most scientists have a chart that shows relavent intelligence, primates, including humans filled the top ten and the pig came in 11th. Do you agree with this chart? The elephant is #12, do you agree?

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I still don't understand what the answer is supposed to be, or where you would get it?

One of the articles says that a cat's brain is 1% of his/her weight and a human's brain is 2% of his/her weight. If you use 10 lbs for the weight of the cat, how do you work out that the human brain is 3x heavier than the cat brain? In order for that to be true, the human would have to have a weight of 15 lbs.

Stop the presses!
I was so confused that I asked a friend of mine who is a math major about this.
He said that 1.6 multiplied by 3 is about 4 (4/1.6 exactly)
So when I pointed out that 1.6 was ounces not pounds we (he) refigured it.
Human brain is 64 ounces, cat brain 1.6. 40 multiplied by 1.6 is 64. So the answer should be 40 times of a cat...right?

KatKwiz Question

Originally Posted by Persi & Alley

If your cat weighed ten pounds and had a brain that weighed 8 ounces, then that cat's brain would weigh 5% of its body weight. If that same cat's owner weighed 200 pounds and had a brain that weighed 30 pounds, then the human's ratio would be 15%, or 3 times that of a cat.

Replace all the red letters and numbers with realistic and scientific info, but do NOT tell where you found the info.

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KatKwiz Answer

Originally Posted by Persi & Alley

If your cat weighed ten pounds and had a brain that weighed 8 ounces, then that cat's brain would weigh 5% of its body weight. If that same cat's owner weighed 200 pounds and had a brain that weighed 30 pounds, then the human's ratio would be 15%, or 3 times that of a cat.

Looking at the question, the last sentence would have to read: or 3 times that of a cat, not 40 times that of a cat.

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Arent these the same thing??? Nothing in red was replaced. Or am I missing something?

I'm getting what others got.

........body weight.........................brain weight
cat........10-lbs.......1%.........=........1/10-lbs
owner...200-lbs.......2%.........=............4-lbs

4-lbs is 40 times that of 1/10-lb

Originally Posted by Persi & Alley
If your cat weighed ten pounds and had a brain that weighed 8 ounces, then that cat's brain would weigh 5% of its body weight. If that same cat's owner weighed 200 pounds and had a brain that weighed 30 pounds, then the human's ratio would be 15%, or 3 times that of a cat.




Just by what Im seeing, I think for the actual Katkwiz question, it means how if you say that the cats brain is 5% of his total body weight, and the human brain is 15% of the human total body weight, that our brains our cosidered 3 times the size of a cats brain. I dont think we're talking about the whole cat or anything! I know how you're getting the 40 times, you are taking the humans total body weight of 200, and dividing with the 5% that the cats brain , and not the human brain to cat brain ratio!
15% / 5% = 3 times

Therefore our brains are 3 times the size to ratio!

If your cat weighed 10 pounds, it would have about an 8oz brain. There for you would take the 10lbs and divided by .5% (since 16oz would have made 1 full percent, half of 16oz would be 8, and would be .5%! And a humans ration would be 200lb human/30lbs brains
So I took the size of the brain, 30lbs, and divided it by the 200lbs to figure out the ratio, what I came up with was 15%

So Since I came up with The cats brain is 5% and the humans is 15% you divide 15% by 5% and you gete 3 % as your answer

Well I guess I understand it! He's just compairing the size difference of the brains, the humans brains is 15% of total body weight, and the cats brain is 5% of the cats total body weight. So if you figured out that the end part is all about ratios then you know you take the 15%(humans) and divide it by 5%(by kitties) and you come up with 3times the size of a cats brain


I hope that helps everyone finish!!

Glitch, he asked us to replace the words in red with more realistic numbers and scientific information.

If your cat weighed ten pounds and had a brain that weighed 8 ounces, then that cat's brain would weigh 5% of its body weight. If that same cat's owner weighed 200 pounds and had a brain that weighed 30 pounds, then the human's ratio would be 15%, or 3 times that of a cat.

Replace all the red letters and numbers with realistic and scientific info, but do NOT tell where you found the info.

Click to expand...

If you went through the Cat Snips and then followed the Stupid Cats link, you would find the scientific information he was talking about:

A cat’s brain weighs 1% of the cat’s total weight. Our brain weighs 2% of our overall weight.

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So if we replace his 5% and 15% with the more realistic 1% and 2% you get a 1/10-lb (1.6 ounces) brain for a 10-lb cat and a 4-lb brain for a 200-lb person... which is 40 times that of a cats.

I think it was a looong day yesterday... as it appears that the answer he gives is identical to the question. Blame it on all the moving and Persi worries.

OR maybe it's just me; after all, I am running on low batteries today.

Okay well I wasn't even a part of the question and that parts been over since forever, so Im going to give up on answering!! I think that the brain sizes dont matter, each animal has different capabilities, and different flaw! So I realy dont think the size of the cranium or brains can predict how smart someone will be or will now be!! There brains may just be mini sized with all the info minisized!!

In the human/cat brain ratio
the human brain is 2 1/2 % larger than the cat brain ratio,

Originally Posted by glitch

I think that the brain sizes dont matter, each animal has different capabilities, and different flaw! So I realy dont think the size of the cranium or brains can predict how smart someone will be or will now be!! There brains may just be mini sized with all the info minisized!!

In the human/cat brain ratio
the human brain is 2 1/2 % larger than the cat brain ratio,

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I dont think it matters either (brain size). Look at a bird's brain! And they talk! Sure it only mimics, but they still manage to learn the words. Also, look at the recently discussed homing pigeon... They manage to fit knowledge in a small package.

It's probably like modern day technologies. Remember when cordless phones first came out??? How huge they were! Compare that to the size of the new cell phones.

Jeesh!

Originally Posted by Marianjela

I dont think it matters either (brain size).

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I'm confused, but I'll bet Nova understands! She is quite smart for a one year old! Cats are pretty intelligent, I don't doubt they would learn how to use tools if they had a way to hold them or a need to.

Nova is always trying to stretch hairbands by holding one end down with her paw and pulling the other with her mouth. She tries to open doors too. She could probably do it with opposable thumbs.

A lot of the time, she mimics my body motions and I wonder if she's trying to figure out what I'm doing. For example, if she wants to open a door she tries to touch a door knob but she doesn't know to turn it. The same thing with the bathroom sink... I've seen her tap the faucet when she wanted a drink.