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There's no proof for this, but it's conceivable that
sauropods, and some other dinosaurs for that matter,
could have produced a nutrtious substance in their
proventriculi or "crops" that might have been an
analog to mammalian milk, rich in protein and
vitamins, which they could have regurgitated for a
period of time to feed hatchlings or nestlings.
Columbiformes actually do this (breeders call it
"pigeon's milk")exactly for this purpose.
--- Dann Pigdon <firstname.lastname@example.org> wrote:
> email@example.com wrote:
> > The question of how or if sauropods cared for
> their young is extremely
> > interesting, if vexing. I imagine the size
> difference between newborn
> > and adult would be the greatest in terrestrial
> vertebrate history?
> > Notwithstanding the grub-like young of
> Marsupials have it easy - they have an in-built
> pocket to keep their
> joeys safe. Perhaps pandas are the closest sauropod
> analogue as far as
> caring for tiny offspring? At least sauropods didn't
> have to
> Dann Pigdon Australian Dinosaurs:
> GIS / Archaeologist
> Melbourne, Australia
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