RE: T. rex was a 'slow-turning plodder'...

[Brandon Pilcher <trex_kid@hotmail.com>]

Why does Hutchinson think a 3-4 ton rex is implausible? The article did not 
do a very good job at explaining the problem with that idea (science 
reporting for the lay masses at its finest again). As I understand, the 
standard 7-8 ton estimate for Rex used in both Hutchinson's studies and most 
dinosaur books is based on measurements using elephants. The idea that it 
was lighter comes from accounting for honeycomb structures in the bones and 
air sacs, present in T. rex but not in elephants. Now, I think 3 tons is 
pushing it, but I can see a 5-ton rex. If this case for a lighter rex can be 
vindicated, I'd like to see how that would affect speed and turning velocity 
estimates.

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