Re: Frizzy & straight hair: lice pathogens


"rmacfarl" <rmacfarl@xxxxxxxxxxxxxxxx> wrote in message
news:1170311042.168030.71430@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Jan 27, 10:53 am, "nickname" <alas_my_lo...@xxxxxxxxx> wrote:
I'm hoping Paul or someone will provide a sensible response (sorry
Spiznet! ;)) to a
question I asked a year ago:

Paul, why do you think ancient human ancestors had frizzy hair?

...


The coastal people retained straight-wavy hair due to the dual action
of sunlight
and daily saltwater submergence, where lice and their eggs (nits)
couldn't stay
attached, (straight/wavy hair being dominant in coastal populations due
to better
hydrodynamics).http://tinyurl.com/2oq7d8

Argumentum ad aquaticus. Automatic assumption of aquatic evolutionary
pressures, sans any testing of the hypothesis as to whether such
behaviours would/could have exerted an evolutionary pressure on the
"coastal people". There is no evidence presented that swimming
(ability, frequency, risk/reward) impacted on survival, nor less any
evidence that hydrodynamics impacted on swimming ability to any
significant degree.


Very curly and frizzy hair are inland tropical rainforest Hs traits,
this pattern of inland
frizzy/coastal straight hair is found throughout the Indo-Pacific area
with few exceptions
(Madagascar due to recent settlement). The straight and wavy hair found
in many
caucasians and East Asians tend to get worse lice infestations AFAIK
due to
the proportionately reduced time spent immersed in seawater on a daily
basis in
modern times.

Evidence that time spent immersed in seawater on a daily basis is
proportionately reduced in modern times?

Explanation as to why this evidence would be more plausible than fact
that humans have taken to living together in higher concentrations
that historically in modern times?

Anyone noticed how since traffic has been slow on SAP recently, the
wet-apers are starting to slink back in? First DD & Chapstick, Marco's
trojan horses, now increasingly the Belgian donkey himself...

You're too kind, my DLF... I might be a net loon, but not a wet aper. (it
is incontrovertible that we are ALL nerds, and therefore possibly
netloonatics, on sap, since we post here.) I am your basic standard pa,
mosaic, generalist. As a generalist, it must include some contact with the
water since we are known to inhabit water now & generalist includes all
environments from some 18,000 feet up to about 120 feet under, and pole to
pole.
Throw in random mutation and sexual selection, and Dah-taaa! you get
hss... an improble creature, but apparently, it happened.
I don't have any particular allegiance to anyone, whether Bush or Shrub
or Outback. But thanks for the compliment.
--chap
ps... one of my recent posts included refs, which is something that I would
do every time if i had more time. I am very keen on peer reviewed and/or
scientific articles that depend on peer review.


Ross Macfarlane



.

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