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Venom Development
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by IanG on November 13, 2003
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Hi,
I was checking out BGF's new site and i believe i read that Pythons were primitive snakes, so presumably the most toxic snakes are the most recently developed and therefore is venom as a whole across the reptile family developing with time..
Disclaimer:
Non keeper, no knowledge but very interested
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RE: Venom Development
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by Naja_oxiana on November 15, 2003
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To explain this I would simply point to several other conclusions of Dr. Fry's work. While the consensus HAD been that venom and delivery apparatuses had evolved on several different occasions, the discovery of similar toxins in older colubrids suggests that the venom production apparatus--Duvernoy's Gland/venom gland--evolved and then various delivery mechanisms evolved along different lines. (This explains the proteroglyphs versus the opisthoglyphs versus the aglyphs etc...)
Messers. Fry or Wuster can better elaborate on this. I will say only further that it is interesting that a number of the same toxins are found throughout vipers, elapids AND colubrids.
Cheers,
Roger
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