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3 The New York Years (1931–1953)

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366 11 History and Philosophy of Biology—Mayr’s Third Synthesis<br />

<strong>The</strong> principles he listed (1982d: 75–76) as a good basis for a philosophy of biology<br />

include:<br />

(1) <strong>The</strong>ories of physics and chemistry alone are insufficient fully to understand<br />

organisms.<br />

(2) <strong>The</strong> historical nature of organisms must be considered, in particular their<br />

possession of a genetic program.<br />

(3) Individuals at most levels are unique and form populations.<br />

(4) <strong>The</strong>re are two biologies, functional and evolutionary biology.<br />

(5) <strong>The</strong> history of biology has been dominated by the establishment of concepts<br />

(their maturation, modification and occasionally their rejection).<br />

(6) <strong>The</strong> complexity of living systems is hierarchically organized and the higher<br />

levels are characterized by the emergence of novelties.<br />

(7) Observation and comparison are methods in biological research that are as<br />

scientific and heuristic as the experiment.<br />

(8) <strong>The</strong> insistence on the autonomy of biology does not mean an endorsement of<br />

vitalism or any other theory that is in conflict with the laws of chemistry and<br />

physics.<br />

Four areas with many open questions characterize the current frontier of biology:<br />

(1) the structure and functioning of the genome, (2) the ontogeny of organisms<br />

from the zygote to the adult stage, (3) the functioning of the brain with its billions of<br />

nerve cells, and (4) the interactions of different organisms in a complex ecosystem.<br />

A philosophy of biology must include a consideration of all concepts of functional<br />

and evolutionary biology, systematics, behavioral biology and ecology. At<br />

the same time it should stay equally far away from vitalism and from a physicalist<br />

reductionism that is unable to do justice to specifically biological phenomena and<br />

systems, Mayr stated. He did not establish another (third) philosophy of biology<br />

between vitalism and physicalism, but had in mind a “biological reductionism”<br />

capable of explaining also specifically biological phenomena (Junker 2007).<br />

Teleology<br />

In view of the composite nature of the concept of teleology the literature on this<br />

subject had been very confused until Mayr clarified this situation in several articles<br />

and chapters in his books (1974e, 1982d, 1984b, 1988e, 1992b, 1998e, 2004a). He<br />

distinguished four or five categories of teleology as follow:<br />

(1) Teleomatic processes: Automatically achieved, like a rock falling to the ground.<br />

Such processes have an endpoint but they never have a goal.<br />

(2) Teleonomic processes: A process or behavior that owes its goal-directedness<br />

to the influence of an evolved program. <strong>The</strong> controlling genetic program is<br />

constantly adjusted by the selective value of the achieved endpoint. <strong>The</strong> goal<br />

is already coded in the program that directs these activities.

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