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Sunday, January 16, 2011

Different species show identical patterns?

At honest broker of media releases ScienceDaily (Jan. 11, 2011), we learn that
"Catfish Study Reveals Multiplicity of Species" — Peer into any stream in a South American rainforest and you may well see a small shoal of similar-looking miniature catfish. But don't be fooled into thinking that they are all the same species.
Promise, I won't be fooled.
An extensive investigation of South American Corydoras catfish, reveals that catfish communities- although containing almost identically coloured and patterned fish, could actually contain three or more different species.

Establishing for the first time that many species are mimetic; that is, they evolve to share the same colour patterns for mutual benefit- the research also established that each individual community of similar looking fish comprised species belonging to different genetic lineages, but still adopting similar colour patterns.
What theory of species formation would this find best support? Plato's theory of forms?


Intellectual freedom: When “silent no more” morphed swiftly into “silent, no kidding!”

On recent legacy media demands for more government control of new media, on the undemonstrated (and undemonstrable) ground that new media spurred the Tucson assassin, Ottawa Citizen columnist David Warren writes,
We stand against the politics of the guillotine, or The Politics of Procrustes, as the British analytic philosopher Antony Flew explained, in a wonderfully clear book (1981). His title referred to the Greek myth of Procrustes, who assigned himself the task of making all who came his way “equal” -- either by stretching them on his metal bed, or by chopping down their limbs.

And words, too, have come to be tortured, so that in current radical parlance, “diversity” means everyone must have the same opinions, or be subject to stretching or chopping by the machinery of the “human rights” industry.

And, “paranoia” means, unwillingness to be so stretched, or chopped.

- “Unwilling to be chopped”, January 16, 2011
It amounts to making government our zookeeper. He adds,
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