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Dr.Bonnette
Guest
To Vern Humphrey,
You write, “I tend to favor the biological definition first because it is more easily defined, not because I want to draw a philosophical distinction between Neandarthals and modern humans.”
I can see your point since we are so used to thinking of the Neanderthals as looking different and being different from the Cro-Magnons and ourselves. Still, as I indicated in an earlier posting the problem with the biological species concept is that it is really a mess. The overall situation is summed up by vertebrate paleontologist George Gaylord Simpson by saying, “No precise and generally acceptable definition of a species has yet been achieved.” See p. 3 of my Origin of the Human Species (Sapientia Press, 2003).
The problem with all biological species notions is that they are based upon what Aristotle calls “accidental” qualities, such as morphology, reproductive isolation, or genetics. None of these strike to the essence of any species. Fr. Raymond J. Nogar, in his The Wisdom of Evolution (1963) tries to “define” the common house cat by qualities such as the basic attributes of self-development and sensation, and the less basic attributes such as having a digestive tract, spinal cord, skull, claws, teeth, and so forth. (See Origin of the Human Species, pp. 32-33.) The problem is that the “basic” qualities of self-development and sensation are shared by all animals, while the less basic attributes may sound applicable to the house cat alone – but have probative force only if we accept that the house cat is actually a distinct natural species! I realize there are other ways of trying to define a biological species, but Simpson knows whereof he speaks. Recall also that for Darwin, there is actually no such thing as species, only groups of similar individuals gradually “morphing” into less similar individuals.
That is why I am more comfortable dealing in terms of the philosophical natural species, even though I would agree that it might be dangerous to confuse a mouse with an elephant, despite them being in the same philosophical natural species!
Dr. Bonnette
You write, “I tend to favor the biological definition first because it is more easily defined, not because I want to draw a philosophical distinction between Neandarthals and modern humans.”
I can see your point since we are so used to thinking of the Neanderthals as looking different and being different from the Cro-Magnons and ourselves. Still, as I indicated in an earlier posting the problem with the biological species concept is that it is really a mess. The overall situation is summed up by vertebrate paleontologist George Gaylord Simpson by saying, “No precise and generally acceptable definition of a species has yet been achieved.” See p. 3 of my Origin of the Human Species (Sapientia Press, 2003).
The problem with all biological species notions is that they are based upon what Aristotle calls “accidental” qualities, such as morphology, reproductive isolation, or genetics. None of these strike to the essence of any species. Fr. Raymond J. Nogar, in his The Wisdom of Evolution (1963) tries to “define” the common house cat by qualities such as the basic attributes of self-development and sensation, and the less basic attributes such as having a digestive tract, spinal cord, skull, claws, teeth, and so forth. (See Origin of the Human Species, pp. 32-33.) The problem is that the “basic” qualities of self-development and sensation are shared by all animals, while the less basic attributes may sound applicable to the house cat alone – but have probative force only if we accept that the house cat is actually a distinct natural species! I realize there are other ways of trying to define a biological species, but Simpson knows whereof he speaks. Recall also that for Darwin, there is actually no such thing as species, only groups of similar individuals gradually “morphing” into less similar individuals.
That is why I am more comfortable dealing in terms of the philosophical natural species, even though I would agree that it might be dangerous to confuse a mouse with an elephant, despite them being in the same philosophical natural species!
Dr. Bonnette