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Re: Brachiosaur flexibility and face-shape (Was: Terra Nova: thoughts)
On Wed, Sep 28, 2011 at 4:27 PM, Mike Taylor <firstname.lastname@example.org> wrote:
> On 28 September 2011 15:23, David Marjanovic <email@example.com> wrote:
>>> I have sometimes wondered whether perhaps adult sauropods, in at
>>> least some lineages, NEVER bent their limbs or moved them far from
>>> vertical. If that's so, then they would have avoided the enormous
>>> joint stresses involved in lying down and getting back up again. But
>>> they would have had to do without deep sleep. Then again, since
>>> no-one really has much idea about sauropod sleep anyway, I wouldn't
>>> discount it.
>> I once read the idea that sauropods slept standing up somewhere long ago. Of
>> course, it may have been proposed by someone who didn't know that all extant
>> birds and mammals, even ostriches and zebras, lie down _sometime_ in their
> Just to be clear ... I am not one of those people :-) I have known
> Darren Naish for long enough that I couldn't possibly have avoided
> learning this if I'd wanted to. So what I am suggesting is that
> sauropods were, in this respect, different from every everything else.
> Which is not a huge stretch.
I'm told dolphins sleep one brain hemisphere at a time (and drown if
you sedate them to sleep bilaterally). Is that true? If so, might the
equivalent be imaginable for sauropods?
Why can't you be a non-conformist just like everybody else?