Teleology and Biology: a defense of teleological thinking in biology

Teleological language refers to a forward-looking discourse, and various biologists are troubled with this issue. In this paper, I will discuss the misunderstandings that both philosophers of science and biologists have made against teleology. Among these misunderstandings, I can mention its relationship to anthropomorphism (i.e., a planning agent external to the world reference) and reference to a force immanent to the organisms (“vitalism”) beyond the reach of empirical investigation. I will argue that they are misconceptions and that teleology has shifted its meaning and focus from its pre-evolutionary form. Now it is in the position that it can be used and maintained without violating the principles of modern science. Using an example of the adaptation and function debate, I will discuss how the teleological language is the best interpretation of these issues.