Re: 'MAMMALS MAKE LOUSY REPTILES'

[ornstn@inforamp.net (Ronald Orenstein)]

>     =How does it "lean back" without using its forelimbs?  It seems to me 
>     =like to only way to shift the animals balance backward would be to 
>     =push off with the forelimbs.  If it isn't using these, exactly what 
>     =is it flexing or tilting or whatever to shift the center of gravity?
>     
>     elephants (to use a sample that is viewable today) first bend their 
>     knees (yes, on the back legs), then sit back on their haunches, and 
>     then lift their front legs off the ground to rear up.  The lack of a 
>     push-back by the front legs is probably because the front legs are 
>     pretty straight and wouldn't give much vertical lift if flexed.
>     
>     -Betty
>

Dumb question - in JP (the movie) they had the brachiosaur clearly flex its
front legs and push off with them to get it to rear.  Could a brachiosaur
have done this?
--
Ronald I. Orenstein                           Phone: (905) 820-7886 (home)
International Wildlife Coalition              Fax/Modem: (905) 569-0116 (home)
Home: 1825 Shady Creek Court                  Messages: (416) 368-4661
Mississauga, Ontario, Canada L5L 3W2          Internet: ornstn@inforamp.net
Office: 130 Adelaide Street W., Suite 1940    
Toronto, Ontario Canada M5H 3P5