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FW: SWIMMING HADROSAURS



Brian said:

>Hadrosaurs *did not* use their tails to swim like crocodilians, if
>this is what you're implying. The muscular *base* of the crocodilian
>tail is where all the power needed to push the body through the
>water comes from.  Hadrosaur tails are narrow at the base and
>stiffened with ossified tendons throughout most of their length;
>there is no possibility that they were capable of moving their tails
>in the same manner as crocodilians.

Another way to say the same thing is that crocs swim with their tails,   
and BOTH legs wiggle in tandem with the tail while swimming.  Hadrosaurs   
walk with their legs and the tail wiggles in tandem with each leg while   
walking.  The power muscle would be switched for each animal.  So they   
aren't equivalent.

 -Betty Cunningham