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402. Extreme Ischial Callosities I

402. Extreme Ischial Callosities I
Photo Information
Copyright: Radu Xplorator (Xplorator) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 651 W: 57 N: 1506] (7719)
Genre: Animals
Medium: Color
Date Taken: 2006-08
Categories: Mammals
Camera: Nikon CP 8800
Photo Version: Original Version
Date Submitted: 2006-10-14 5:26
Viewed: 10367
Points: 8
[Note Guidelines] Photographer's Note
I try to entertain my viewers with less common species, views or things and this serie thats about to be is definitely no exception. We all at one point or another looked at a zoo, a movie or an image of monkeys specially chimps or baboons with striking rumps, big ol’ red buts and no matter what the personal conclusion was the darn thing looks shocking! Depending on persona or mood it is viewed as vulgar, libidinous, comic, disgusting, interesting or strange but always a sight you just simply just cant ignore. Some people rush out or even cover the eyes of their children when such unveil their behinds. So what’s the story with the bizarre monkey buts?
First of all the correct term for it is (are you ready?) it is ischial callosity and it is defined as: a thickening of the skin overlying a posterior section of the pelvis (ischial tuberosity); found in the Old World monkeys and some apes. Or in 1913 Webster said: one of the patches of thickened, hairless, and often bright-colored skin, on the buttocks of many apes, as the drill.
First impression is to believe that t has to do with animals being in heat and these ischial callosities acts as extreme visual signals to attract attention. Well biologists came to the conclusion that they are simply bum-pads. Which makes lots of sense if you think that you can pretty much find them on the terrestrial monkeys & apes: baboons, macaques & the chimpanzee. So it is an evolutionary development that helps them sit on surfaces for long periods of time. It also enhances its color greatly during mating season. So both opinions were true!
This particular image is a young Hamadryas Baboon
Papio hamadryas
a primate from the Ethiopian highlands in central-east Africa.
More to come, regardless not too many are looking forward to it... :) Mother Nature has many faces...

nainnain, lizbrown, manyee, TheMystic, peter_stoeckl has marked this note useful
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ThreadThread Starter Messages Updated
To TheMystic: Re:Xplorator 1 10-14 16:32
To manyee: Re:Xplorator 1 10-14 15:13
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Critiques [Translate]

bonjour RADU
excellente photo, bonnes couleurs, bon détails
amitiés edith

Hi Radu, I think this is a perfect picture of a baboon - despite people thinking its ugly or vulgar. This is nature and I have always understood as you say, its a sign of being in season.

  • Great 
  • manyee Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3089 W: 230 N: 6774] (23770)
  • [2006-10-14 14:57]
  • [+]

Hi Radu,
I, for one, am anxious to see this new series. : )
Very interesting, if not aesthetic (according to our sensibilities), natural adaptation.
You caught this monkey in an excellent POV to show off his ischial callosity (there, I learned to spell the new words!).
Thanks for the lesson in primate butt appreciation. *grin*
TFS. : )

Very useful note to go with a great capture! I wonder if it is itchy also? Maybe we should start a fundraising drive for Preparation H! Kidding, of course, haha!

Hi Radu,
looks good among the birds and the bees, the flowers and the trees, and obviously serving no other purpose than antlers with stags, conspicuous feathers with birds, or iridenscent wings at butterflies: a well aimed signal of sexual attraction to a well defined target group.
Surprised to read the cushion theory. That's new to me, but why not. Nature has been inventive, and it still is, as long as certain primates called humans don't interfere too much with mother Earth.
Thank you for your straightforward creative approach on phenomena of nature.
Best regards,

P.S.: Sorry, forgot to comment that the picture is clear and sharp, well exposed, and well composed, and your notes are a pleasure to read.

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