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Re: Evolution of tyrannosauroid bite power



I have no argument with the biomechanical work in Carpenter and Smith
(2001). But the conclusion about predatory behavior does not logically
follow from that work.

Indeed it doesn't (despite the fact that it makes it quite likely).

However, that isn't necessary. What it logically follows from are 1) the fact that a flightless animal cannot hope to find enough carcasses to survive, and 2) the healed bite marks on those hadrosaur tails. The debate -- which, I remind, was between the two hypotheses "pure scavenger" vs "not" -- is over. As long as Horner is successful in using this piece of history to attract money and media attention to dinosaur research, more power to him, but he's still wrong.