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(io9)   Humans have stripes -- you just can't see them   (io9.com) divider line 12
    More: Interesting, stripes, skin diseases, endocrine systems  
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11578 clicks; posted to Geek » on 30 Nov 2012 at 6:22 PM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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Zel
2012-11-30 08:46:43 PM
2 votes:
These stripes come from our segmented cellular lineage. When a fetus is only a couple of cells, they each divide separately, so for example, at one point your whole liver was a single cell adjacent to the one that would become the intestines. Through cell division, the four dimensional system could be seen as a family tree of cellular lineages with closely related but diverging genomes.

Cells randomly mutate to form all variation, but it's not always evenly spread throughout your body. Some stripe-shaped chunks of skin are more or less prone to psoriasis than their neighbors. It's a huge problem in genetics that we assume any blood sample is representative of the diseased tissue.

In this case, replace disease with tanning propensity and you can have visible striping in rare instances.
For the rest of us the stripes are invisible.
2012-11-30 08:22:34 PM
2 votes:
Humans have stripes...

So you know they're clean?
2012-11-30 08:09:25 PM
2 votes:
www.med-ars.it

It would be interesting if they had a gene-sensitive pigment that could be activated along these lines.
2012-11-30 07:19:41 PM
2 votes:
2012-12-01 05:38:18 AM
1 votes:
2.bp.blogspot.com
2012-11-30 11:28:11 PM
1 votes:

Peki: Thanks, Fark!

For years I had wondered why my psoriasis patches were so odd. My scalp and forehead are completely covered, and the patch goes down the sides of my face, but has never really encroached anywhere on my face proper (nothing on eyes, nose, mouth, cheeks) in spite of not treating it for years. I also have weird bands on my back and stomach where it alternates between being a huge swath of psoriasis and completely normal skin. Turns out these are falling along the stripes. I wonder if it'll help me figure out where future patches might form. . . .


Yeah, this is the first thing I thought of. My eczema has only appeared along the Blaschko's lines (at least according to a more detailed drawing I found). I don't have much of it at the moment, but that's still kinda freaky. Must be the skin's weakest points?
2012-11-30 10:09:16 PM
1 votes:

Diogenes: Great. First, sparkly vampires. Now striped humans.


People be sparkly. humans glow in the dark in the visible range. Too faint to see tho'

http://www.livescience.com/7799-strange-humans-glow-visible-light.htm l
2012-11-30 09:52:10 PM
1 votes:

dletter: unyon: edmo: I'd love to see some talented FARK PS expert turn this into a image I could understand.

No need. Here's the image from the linked page on chimerism:

[genetics.thetech.org image 150x200]

[s1.ibtimes.com image 619x464]

Damnit, and I had to work at looking like that....


He's dead, Jim.

Sad, but not unexpected. He obviously wasn't happy with himself and never would be.
2012-11-30 08:19:02 PM
1 votes:
I have a theory that if humans had stripes and spots and other variations, there might be no racism, provided, of course, that they were inherited like the patterns of cats and dogs, with variation in the same family.

Failing that, Blaschko lines would be good camouflage.

They remind me of Qi lines, although they aren't the same pattern and probably don't provide any evidence for traditional Chinese medicine.

Cool, though.

Speaking of invisible, if you could see in the microwave spectrum, clothes would be invisible and human skin would look metallic, shiney and alien.

We see the Universe through a narrow slit of wavelengths. I wonder what a God's eye view would look like? You'd be able to watch people's skin colour change in the infra-red and know what they were thinking and feeling. STOP THAT YOU NAUGHTY BOY! Slap!
2012-11-30 08:02:52 PM
1 votes:
I'm not fat. I just look that way because my stripes are horizontal.
2012-11-30 07:27:53 PM
1 votes:
Please don't turn into a fu---

Nebulious: We are all furries now.


DAMMIT!
2012-11-30 04:04:42 PM
1 votes:

edmo: I'd love to see some talented FARK PS expert turn this into a image I could understand.


No need. Here's the image from the linked page on chimerism:

genetics.thetech.org
 
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