Why has it been so difficult to integrate paleontology and mainstream evolutionary biology? Two common answers are: (1) the two fields have fundamentally different aims, and (2) the tensions arise out of disciplinary squabbles for funding and prestige. This paper examines the role of fossil data in phylogeny reconstruction in order to assess these two explanations. I argue that while cladistics has provided a framework within which to integrate fossil character data, the stratigraphic (temporal) component of fossil data has been (...) harder to integrate. A close examination of how fossil data have been used in phylogeny reconstruction suggests that neither explanation is adequate. While some of the tensions between the fields may be intellectual turf wars, the second explanation downplays the genuine difficulty of combining the distinctive data of the two fields. Furthermore, it is simply not the case that the two fields pursue completely distinct aims. Systematists do disagree about precisely how to represent phylogeny (e.g., minimalist cladograms or trees with varying levels of detail) but given that every tree presupposes a pattern of branching (a cladogram), these aims are not completely distinct. The central problem has been developing methods that allow scientists to incorporate the distinctive bodies of data generated by these two fields. Further case studies will be required to determine if this explanation holds for other areas of interaction between paleontology and neontology. (shrink)

The impact of philosophy of science on biology is slight. Evolutionary biology, however, is nowadays an exception. The status of the neo-Darwinian theory of evolution is seriously challenged from a methodological perspective. However, the methodology used in the relevant discussions is plainly defective. A correct application of methodology to evolutionary theory leads to the following conclusions. The theory of natural selection is unfalsifiable in a strict sense of the term. This, however, does not militate against the theory, because no scientific (...) theory whatever is testable in this way. Under a more liberal testability criterion, the theory is surely testable. None the less, certain research programs may tend to make the theory untestable in practice. It has often been argued that the tautologous character of the principle of natural selection, allegedly the focus of evolutionary theory, makes the theory untestable through circular reasoning. Actually, the principle is only a tautology if ‘fitness’ is wrongly defined in terms of actual survival. But even then circular reasoning need not ensue. Evolutionary principles do not permit, without additional information, the derivation of statements about evolutionary events concerning particular species or populations. If this were a reason to criticize the theory , any other scientific theory would be inadequate by the same token. (shrink)

Is it possible to be a socio-biologist and a feminist? Socio-biology has been accused of being a macho ideological arsenal, which seems to exclude in advance any possibility of amending it. However that was the project of several female researchers (in particular S. B. Hrdy and P. A. Gowaty), who suggested adopting the science’s theoretical framework in order to change it from within. This has been expressed in a change of focus: an appeal to take account of female strategies and (...) their evolution as well as the "sex war" at work in process of reproduction. This opening out of socio-biology’s theoretical framework has not been undertaken in the name of the privilege of a "female perspective" but it has without a doubt been nourished by the researchers’ marginal position in their discipline as well as their political involvement. "Male" contributions, such as W. G. Eberhard’s work on the "female’s cryptic choice", are also part of this movement though they do not claim allegiance to it. Similarly, a critical study has been carried out on the vocabulary of socio-biology: not in order to exercise a "politically correct" ideological tyranny but to improve the efficiency of the conceptual tools introduced by the science. Today some feminists think feminism should incorporate socio-biology’s results but resistance still remains strong. Though many feminists think feminism has more to bring to biology than the reverse, many biologists consider that feminism is just an ideology that should remain apart from scientific work. (shrink)

Michael Ruse's rejection of religious belief is questioned at two levels. First, on the metaethical level of analysis, evolutionary ethics cannot account for moral behavior that is based on a “strong version” of the Love Command. Second, agnosticism is discussed as a form of belief. Insights from religious forms of life that are inclusive, pluralistic, and expansive are contrasted with exclusivistic, closed, and fundamentalist forms of religion in order to develop criteria for “genuine religion.” Theistic agnosticism is presented as a (...) prolegomena to belief. (shrink)