Bats and mice and wings and things

i-b02d4d36d888d056055543c270403afc-Picture 1-2.png

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.

More like this

We are surrounded by annoying misconceptions about the diversity of animal life. For me, one of the most annoying and persistent of these is the idea that... drumroll... Australia is a 'land of marsupials' where - bar humans and introduced species like dingoes and rabbits - placental mammals have…
Welcome to part III of the vesper bat series though, as we'll see, the bats I'm covering here are not really vesper bat at all (anymore, and in the strictest sense of the term 'vesper bat'). They are the extremely strange, highly widespread long-winged bats, long-fingered bats or bent-winged bats…
Time to continue our trek across the vesper bat cladogram. In the previous article we looked at the bent-winged bats (or miniopterids, or miniopterines): a highly distinctive, morphologically novel group that seem to have diverged from vesper bats proper something like 45 million years ago. Their…
The relative length of bat forelimb digits has not changed in 50 million years. (a) Icaronycteris index, which is a 50-million-year-old bat fossil. (b) Extant adult bat skeleton. The metacarpals (red arrows) of the first fossil bats are already elongated and closely resemble modern bats. This…

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.