June 26, 2010
Something has always troubled me about Darwin’s theory and even modern revisions of his work – there is still no explanation for instinct. Ethologists call instincts innate releasing mechanisms or IRM, which in layman’s terms means “we’ll use big fancy words because we just don’t know.” The most common definition is, “The mechanism by which an organism responds to a key stimulus (KS) with a fixed action pattern (FAP).” Of course, this explains nothing. This is one of the limitations of Darwin’s theory – it always has been. An earlier theory of inheritance was posed by the French zoologist, Jean-Baptiste Lamarck (1744-1829). From Understanding Evolution:
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May 9, 2010
From The Omnivore’s Dilemma by Michael Pollan:
“The ingredients listed in the flyer suggest a lot of thought goes into a nugget, that and a lot of corn. Of the thirty-eight ingredients it takes to make a McNugget, I counted thirteen that can be derived from corn: the corn-fed chicken itself; modified cornstarch (to bind the pulverized chicken meat); mono-, tri-, and diglycerides (emulsifiers, which keep the fats and water from separating); dextrose; lecithin (another emulsifier); chicken broth (to restore some of the flavor that processing leeches out); yellow corn flour and more modified cornstarch (for the batter); cornstarch (a filler); vegetable shortening; partially hydrogenated corn oil; and citric acid as a preservative. A couple of other plants take part in the nugget: There’s some wheat in the batter, and on any given day the hydrogenated oil could come from soybeans, canola, or cotton rather than corn, depending on the market price and availability.
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