On Monday, August 22, 2016 at 7:06:30 PM UTC-4, Jonathan wrote:
> Parasites in prose and poetry...
>
> From The Nature Is Beautiful Department
You're using some heavy-handed sarcasm here, Jonathan.
>
> "The common barnacle (Sacculina) begins its parasitic life
> as a free-swimming larva.
The *common* barnacle? The one that covers wharf pilings and
the bottoms of boats and ships? Which species became the
parasite that is described next?
The female barnacle (as insidious
> as any woman!) settles on a crab, crawls to a leg joint
> and pokes a small entry hole.
>
> She then squeezes her soft parts inside (leaving her shell behind)
> and wends her single-minded way to the abdomen where she dines
> on the available nutrients. As she grows, she forms a protrusion
> in the crab's shell and then sends out extensions - or "roots" -
> of her own body throughout the crab, even to the very tips
> of its eye stalks. As a result the crab soon no longer sheds
> its shell, grows, or produces eggs or sperm. In essence, the
> crab becomes a zombie vehicle which lives only to serve its
> parasitic guest.
>
>
> As if that weren't disturbing enough, the female furthermore
> makes a pinhole in the host's abdomen to attract the tiny
> male Sacculina, who squeezes himself into the crab in the
> same fashion as the female had earlier. They then fertilize
> each other for the remainder of their lives, and manipulate
> the crab's hormonal system so that the crab periodically
> scales a high rock, pushes out the parasites'
> young'uns and even waves its claws in the water to
> spread them on their merry way - just as it would do
> for its own offspring."
I wonder to what extent the remnants of the crab are
really "doing" these things and whether the situation
is just a bit more like the innocent case of the horseshoe crab
just using the shell of a mollusk to protect itself.
IOW, is there really much left of the original organs of
the crab that they can really be said to be doing the
above things, or is it really the barnacle manipulating
the crab's body with its own body parts? Specifically, is the central
nervous system of the crab still doing the actual moving of
the crab as described above?
<snip>
> This day relenting God
> Hath placed within my hand
> A wondrous thing; and God
> Be praised. At His command,
> Seeking His secret deeds
> With tears and toiling breath,
> I find thy cunning seeds,
> O million-murdering Death.
> I know this little thing
> A myriad men will save.
> O Death, where is thy sting?
> Thy victory, O Grave?
>
>
> ~ Sir Ronald Ross
>
> awarded the Nobel Prize in Medicine in 1902
> for proving the role of Anopheles mosquitoes
> in the transmission of malaria parasites
> in humans.
>
https://athnablog.wordpress.com/2016/06/17/malaria-poetry-and-the-power-of-the-written-word/
Unfortunately, mosquitoes of all kinds are making a comeback, partly
thanks to the decades-long ban on DDT. Maybe some day, even
New York carriers of the sickle cell trait will count themselves
fortunate. [Except, of course, for the ones whose close relatives
are homozygous and suffer from sickle cell anemia.]
> So Nat'ralists observe, a flea
> Hath smaller fleas that on him prey;
> And these have smaller fleas to bite 'em,
> And so proceed ad infinitum.
>
> ~Dean Swift
According to Wikipedia, that's Jonathan Swift, who was made Dean of St
Patrick's Cathedral, Dublin. To make matters confusing, he had a
relative named Deane Swift, and I wonder whether the original
poem is really due to him.
What may be the original is here along with variations:
https://en.wikipedia.org/wiki/The_Siphonaptera
Some variations are very loose, and I was delighted to find the
following variation in that Wiki page; I last saw it three fourths
of a lifetime ago, before the word "fractal" was coined:
Lewis F. Richardson adapted the poem to meteorology,
specifically discussing fractal wind patterns:
Big whorls have little whorls
That feed on their velocity;
And little whorls have lesser whorls
And so on to viscosity.
Peter Nyikos
Professor, Dept. of Mathematics -- standard disclaimer
The original USC, Columbia