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Re: gastrolith research
On Wed, 19 May 1999 05:59:49 -0400 Thom Holmes writes:
>For what it's worth, I have wondered if gastroliths are not so much
>related to grinding up vegetation in the stomach as they are to merely
>the food through the digestive tract. One reason I say this is that I
have noticed that >iguanas do this; they eat gravel when it is available
and it passes with their
Iguanas do this? Well, not really for those reasons. Iguanas
investigate their environment by licking nearly everything they can lay
their tongues on (be it food, a basking log, thier owner, it it's a pet
iguana, gravel, another iguana they may be interested in mating with: if
you go tto this URL, you can read a story about an iguana which ate a
pair of it's owner's panties!:
<http://geocities.com/Heartland/6860/ig-stories.html#daly_vs>). In so
doing, they may accidently ingest whatever their tongue happens to be
They do not really "eat" gravel to help digest their food, even though
they are herbivorous: gravel can cause in impaction and kill an iguana
through an intestinal rupture.
Ack, just realized I was writing to the DINOSAUR and not the IGUANA
mailing list, so to bring this back on-topic: iguana ingestion of gravel
is in no way comparable to sauropods' ingestion of gastroliths, for the
reasons outlined above.
I have never bitten my iguana.
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