...a big shout out to UC Berkeley!
The university has some of the best and most comprehensive information on vertebrate flight that I could track down on the web.
Specifically, Chiroptera- and if you don't know what I'm talking about, you'll find out soon enough. If you do know what I'm talking about, but can't fathom why, well... you, too may find out soon.
Wierd and enigmatic enough? I think so.