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Re: Long-necked stegosaur coming out in Proceedings B
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- Subject: Re: Long-necked stegosaur coming out in Proceedings B
- From: Mike Taylor <email@example.com>
- Date: Thu, 5 Mar 2009 10:57:23 +0000
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Tim Williams writes:
> > "... two scenarios are possible."
> > "The first is that the long neck might have permitted it to
> > browse for foliage at a height not frequented by other
> > prehistoric animals. The second is that males and females might
> > have found the trait appealing, so it evolved due to sexual
> > selection.
> I would have suggested a third possibility (not the same as
> Dann's), which is that a longer neck would allow a better
> 'look-out' to scour the terrain for approaching predators.
> Interestingly, this idea is implicitly contradicted by the paper:
> "By contrast, the long neck of _Miragaia_ incurred a survival cost
> because it presented a greater predation target for medium to
> large-sized theropods..."
Please. Sauropod workers have been agonising over the functional and
evolutionary implications of long necks for decades -- surely these
arriviste stegosaur people don't think they're going to work it out
/o ) \/ Mike Taylor <firstname.lastname@example.org> http://www.miketaylor.org.uk
)_v__/\ "It takes a certain kind of bad writer to write badly sincerely"
-- Richard Sherbaniuk.