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Re: How Did Hadrosaurs Defend Their Young?

Body slamming might be a successful defense in
numbers.  The first Pachecephalosaurs must have had no
other defense but to head butt. Over time they
developed all those extras to make that a formidable

Nesting with Horned dinosaurs is unlikly but not
impossible. I would think there would have to be
something in it for the Ceratppsians. An early warning
system perhaps. 

Andrew S.

--- Ivan Kwan <dino_rampage@hotmail.com> wrote:

> I would think mobbing by several adults would be
> enough to deter a 
> tyrannosaur from attacking. And if it was still
> insistent, maybe those front 
> legs could be used for boxing? Or perhaps the
> hadrosaur's means of defence 
> was to slam its body into the predator? The risk of
> broken ribs or falling 
> over and getting trampled would probably dissuade a
> tyrannosaur. Of course, 
> if tyrannosaurs hunted in packs, that could get
> quite complicated.
> I had an idea that maybe hadrosaurs nested together
> with ceratopsians as a 
> means of defence, but that seems unlikely.
> ----Original Message Follows----
> From: Andrew Simpson <deathspresso@yahoo.com>
> Reply-To: deathspresso@yahoo.com
> To: dracontes@gmail.com, dinosaur@usc.edu
> Subject: Re: How Did Hadrosaurs Defend Their Young?
> Date: Tue, 07 Feb 2006 11:01:31 -0800 (PST)
> I agree that many a herbivore will fight back or not
> run when they know they hold the upper hand. I would
> think they might stand their ground but what I can't
> figure out is how they would defend themselves. They
> have no weopons or armor and seemingly are not fast.
> Anybody have any thoughts on the subject of
> hadrosaur
> defense?
> Andrew Simpson

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