One of the most contentious areas within evolutionary biology, and one where the volume of debate/review/history re-writing dramatically exceeds the volume of actual data, is the study of the origin of new species. While we all agree that the origin of new species is fundamental to biological diversification and that it clearly happens, we find ourselves arguing every facet ranging from the definition of species to whether/how speciation is distinct from 'adaptation' to the role of ecology/physiology to the types of genetic changes needed for speciation to occur. Why is this area so contentious? Are there areas where agreement is possible? As a full history would take weeks to present, Mohamed will discuss a handful of the more recent debates, areas of consensus, areas of ambiguity, and what we can vs. can never know. His hope is that this will be an interactive discussion rather than purely oratory.
Tea will be served in the Library from 5.30pm and the lecture will be followed by a wine reception. This meeting is free and open to all; registration is not necessary.