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Re: CASSOWARY CRESTS REVISITED
On Thu, 11 Jun 1998 firstname.lastname@example.org wrote:
> Use of crests as foliage deflectors is, as I think I said last time I
> mentioned this, speculative. However, please understand the context.
> One should not imagine an enraged, speeding cassowary ploughing
> headlong through the rainforest, robustly swatting aside all branches
> and other obstacles that invade its path. Those informed in
> dinosaurological matters may have gleaned this impression given what
> has been written (in Norman) about proposed functions of
> lambeosaurine crests. A _Parasaurolophus_ that whacks a branch with
> its crest is probably a _Parasaurolophus_ with a broken crest.
Yes. And there is still a middle-ground view which I favor, that the
cassowary's casque is analogous to a knee-cap; that through the
cassowary's life time they have a high probability of inadvertently
banging their heads. They are, after all, relatively big animals confined
in a biome with lots of obstructions.
I have lost a reference(did I dream it?) which correlates shoulder height
in mammals with average (I think) lowest branch height of their habitat.
I'm not arguing the casque cannnot serve other purposes.