Bats and mice and wings and things 18 May 200818 Sep 2017 Comparative limb growth of a bat (top) and a mouse, in utero development. From the paper below. One of my favourite statistics is this: one in every four mammal species you meet is a rat or rodent, and one in every five is a bat. That’s right, nine in every 20 mammal species is covered by one of these taxa: we may as well treat rodents and bats as the standard mammalian species type. So a paper that combines them has to be good. Quintessence of Dust (what a title!) gives an excellent summary and discussion of a paper that tested evolutionary hypotheses of the evolution of bat wings by transplanting bat limb growth genes into mice and observing the result. Both the paper and the post are awesome. And by the way, although in German “bat” is rendered “Die Fledermaus” as every opera buff knows, bats aren’t flying mice. Chiroptera is a whole distinct group from Rodentia. Evolution General Science Species and systematics
History Is racism Christian? 21 Sep 201921 Sep 2019 I was taught that racism developed out of Johannes Blumenbach’s Anthropological Treatises in the late eighteenth century, specifically his doctoral thesis On the Natural Variety of Mankind, University of Göttingen, which was first published in 1775. In this work he outlined five races of humanity: Caucasian, Mongolian, Malayan, Ethiopean, American…. Read More
General Science Having PC heroes 29 Dec 2007 One of the things about being a Mac user, for 20-odd years now, is that you just like your corporate hero. Sure, they stuffed up on a number of hardware releases, and their delay in getting a multitasking OS out the door is only redeemed by the quality of the… Read More
General Science Rodney Stark’s idiotic history 6 Sep 200818 Sep 2017 Thony Christie, a regular commenter on this blog, is also a historian of science, and he sent the following guest post that I thought well worth publishing. Commentator “Adam” asked John’s opinion on a book he is reading, The Victory of Reason: How Christianity Led to Freedom, Capitalism, and Western… Read More
Well, apparently the French name evolved this way: Latine origine: ?cawa sorix?(owl-mouse) –> turning ‘calves sorices’ in a plural form –> corrupted into bald-mouse (calves is close to “chauve”/bald in French) (source: http://owen.monblogue.branchez-vous.com/2003/6/25/)
Well, apparently the French name evolved this way: Latine origine: ?cawa sorix?(owl-mouse) –> turning ‘calves sorices’ in a plural form –> corrupted into bald-mouse (calves is close to “chauve”/bald in French) (source: http://owen.monblogue.branchez-vous.com/2003/6/25/)
Even weirder than “Fledermaus”, chiroptera are called bald-mouses in French (litterally translating). I don’t know why, but I’ll try investigating…
Even weirder than “Fledermaus”, chiroptera are called bald-mouses in French (litterally translating). I don’t know why, but I’ll try investigating…
Followed closely by antelopes, right? I do wish that people who think there’s one ladder to the top in evolution would look at some of those taxa. Laurent, “owl-mice” sounds like a good name for bats.
Followed closely by antelopes, right? I do wish that people who think there’s one ladder to the top in evolution would look at some of those taxa. Laurent, “owl-mice” sounds like a good name for bats.