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Re: T-rex arms
>T-rex arms have the same function that mononykid arms had, grappling mates.
> They are good only in close proximity, they are very strong and (hopefully)
>they do not puncture.
Not having been there at the time, I can't be as certain of this as Dave is...
Anyway, I find it hard to imagine Mononykus grappling anything with those
arms. Pushing, shoving, poking, yes (which is why I wonder about a
ritualized combat function) but hardly grappling. Further - in most animals
with grappling structures designed specifically for copulation (eg nuptial
pads on toads) such characters are strongly sexually dimporphic, and I am
unaware of any noted dimorphism in (say) T rex forearms.
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