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Re: titanosaurs



In a message dated 12/5/02 9:37:23 AM Pacific Standard Time, 
TiJaWi@agron.iastate.edu writes:

<< 3) Physics and functional anatomy have yet to disprove a gravity-opposing
 ("ground-up") origin of flight.  Sure, it's more challenging that a
 gravity-assisted origin of flight; but as long as its physically feasible,
 it's on the table.  Evolution does not have to take the "easiest" course; it
 can only act on the raw material available.  >>

I would say that evolution >always< takes the easiest course, which is 
determined by the raw material available. This is because the chance of 
finding the easiest course is much greater than that of finding a harder 
course. That, indeed, is the definition of "easiest course."

In flight origins, gravitational energy is there for the taking.