Systematics and Biogeography blog 23 Oct 2007 The estimable Drs David Williams and Malte Ebach have started a blog on Systematics and Biogeography, which supports a recent book they haven’t sent me a free copy of yet. Expect much puncturing of pretensions and orthodoxies. Book Ecology and Biodiversity Evolution Species and systematics
Evolution On religion, and apologies 14 Sep 2008 The hyperborean John Pieret, notes that my love for the “social glue” theory of religion (I henceforth steal that name, John; sue me. Oh, wait, you’re a lawyer aren’t you? Never mind) has been backed up by two ASU anthropologists in a new book. I’d feel a lot happier if… Read More
Evolution Annie’s death was not the cause of Darwin’s agnosticism 6 Jul 2009 That rough punk of evolution, Mark Pallen, has a table up documenting the formulation and spread of the story that it was the horrible death of Darwin’s favoured daughter, Annie, which, he reckons, is not true. He’s working up a paper on the matter, he says. But Darwin’s stated reasons… Read More
Cognition Are emotions 2D? 7 Oct 20137 Oct 2013 I recently became aware that there is a new development in emotion classification. Previously, as far as I knew, emotions were thought to be human universals, give or take some variation (such as the emotion “metagu” among the Ifaluk islanders, see Linquist 2007) and researchers like Paul Ekman, who works as… Read More
Read through the posted link. Very interesting. Having been an aspiring paleontologist up throught the MS, I think this business of dating lineages based on fossils is pretty scary. Fortunately the group I have done the most systematic work on, the family Rivulidae of the Aplocheiloid killifishes, have, so far as I know, no fossil representatives. There have been two independent DNA trees done for the Aplocheiloids, and they are similar enought that we might actually know something. When relationships and distributions are compared to continental drift maps, one feels pretty confident as to what the vicariant events were. So we can date the vicariant events based on geological, but nonfossil, information. We have revised one Rivulid genus based on DNA. The sequence of speciation events and the geological history of that part of South America correlate very nicely. Talking around, workers in other fish groups are coming up with the same sort of scenario. If all this is so, the modern bony fishes originated earlier than we have thought, and diversification was rapid early on.