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Re: attack on dinosaur--horrific video



On Nov 22, 2007 2:02 PM, David Marjanovic <david.marjanovic@gmx.at> wrote:
[snip]
> >> Are you certain that ground-nesting birds are generally night-blind?
> >
> > I know an attended ostrich nest is practically immune from predation in
> > the
> > day--but that, if discovered by black-backed jackals, they are invariably
> > destroyed at night, i.e., the ostrich can defend effectively in the day
> > time
> > but not at night.
>
> That is one. I was talking about "generally".
>
> But I don't think this will lead us anywhere. With fossils, all evidence we
> have is the relative size of the empty eye socket...

Well, it should lead us to the conclusion that nest predation can't be
all that bad even for night-blind species: else ostriches would have
been exinct long ago.

-- 
Andreas Johansson

Why can't you be a non-conformist just like everybody else?