Those opposed would say that all teleological concepts in biology must, in one way or another, be reduced to natural selection.
While neo-Darwinian evolutionary theory does soundly reject any appeal to teleology in the process of evolution itself, there is a large literature in contemporary philosophy of biology defending the legitimacy of employing teleological concepts in connection with adaptations.
So the problem is not that the application of teleological concepts in biology has been discredited by Darwinism, or that it must be limited to physiology and cannot pertain to psychology and behavior.
The problem with appeals to natural teleology in ethics is rather that it is hard to see how we can employ teleological concepts in non-arbitrary ways without appealing precisely to the evolutionary causal histories that have given shape to and organized these traits into coherent functional systems.
Through the experiment and the following discussion, the students probably came to regard mutation correctly as random DNA alteration, not speciation, and then understood evolution by linking changes on the DNA level to those on the phenotype level and rejected teleological concepts.
Examples of basic concepts that have been transient include a teleological conception of nature that is, the view that everything that exists in the world exists for a purpose, and is defined by the purpose that it pursues and a conception of human beings as wholly different from animals, as opposed to a view that sees them as (particularly well-developed) animals.
Teleological thinking the concept that natural objects have some kind of goal direction, provided by either a self-directing vital power or divine source, which is the cause of their functionality has a long and problematic history in evolutionary biology.
Most obviously, unless some concepts can be derived from other concepts, teleological theories would seem to have trouble accounting for empty concepts.
In Hayek's view, the desire on the part of social scientists to emulate the physical sciences creates an exaggerated fear of teleological or "purposive" concepts.
