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SNAKE VENOM
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by reptileliv on February 25, 2008
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I have heard many different answers to this question but I wanted to know if snakes are immune to their own venom?
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RE: SNAKE VENOM
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by Phobos on February 26, 2008
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It seems to vary from species to species, that's the answer that does seem to fit best.
Mambas seem to be immune from bite of another individuals, whereas, Bitis caudalis is not. Vipera ammodytes seem to be immune to each others venom, Protobothrops j. xanthomelas is not.
If you have a specific species in mind, ask and if I know I will tell you. Just remember not just the venom can kill but bite location will also dictate if the end result with be death too.
Al
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RE: SNAKE VENOM
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by LarryDFishel on February 26, 2008
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It also depends a bit on your definition of "immune". I have seen a few species of both North and South American rattlesnake, cottonmouths and copperheads be bitten by another individual of the same species. It has usually resulted in swelling (from mild to severe) but never death that I've seen.
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RE: SNAKE VENOM
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by jparker1167 on February 26, 2008
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i heard that boomslangs where not a friend of mine had his boomer die a the day after it bit himself and he couldnt think of any other reason anyone else know ? i have had copperheads bite eachother and just some swelling
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RE: SNAKE VENOM
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by jared on February 26, 2008
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the snakes may also be immune or partially immune to the venom, i have seen North pacifics swell pretty bad from bites. One the other hand if a viper bites another viper, and the fang penetrates the heart or a lung this could kill the animal, not from venom but from the wound itself.
Jared
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RE: SNAKE VENOM
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by Cro on February 26, 2008
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I once offered a frozen / thawed Anole Lizard to one of my Coral Snakes. The Coral Snake did not eat the lizard, so after a couple of hours, I removed the lizard from the Coral`s cage.
Later that day, I was feeding my Pygmy Rattlesnakes, and I had a juvenile Carolina Pygmy that had not started eating pink mice yet, so I put the Anole Lizard in with the Pygmy. It immediatly ate the lizard.
The next day, I found the Pygmy Rattlesnake to be paralized, and unable to move. It stayed that way for about 5 days before it died.
I am sure that the Coral Snake must have bitten the lizard, and envenomated it, and that then it decided to not eat it.
So, I accidentely fed the lizard that contained Coral Snake venom to the juvenile Pygmy. Apparently, the Coral snake venom was absorbed by the Pygmy as it tried to digest the lizard, and it eventually killed the Pygmy.
So, it would seem that injested Elapid venom can be absorbed by the digestion process, and envenomate other snakes. And it would seem that Pygmy Rattlesnakes are not immune to Coral Snake venom, even if it is injested instead of being injected through fangs.
Best Regards JohnZ
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RE: SNAKE VENOM
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by LarryDFishel on February 26, 2008
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John, where did you get the anole? Personally, I'd be more prone to believe it was something the anole had been exposed to when it was alive (pesticides maybe). For one thing, I've never seen a coral show any interest in a live anole, so I'm having a tough time seeing one envenomating a dead anole laying in the cage.
Just my thoughts.
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RE: SNAKE VENOM
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by Cro on February 26, 2008
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Larry, the Anole came from S. Florida. I had someone down there ship me about 30 or 40 A. segrie for feeders. That particular Coral Snake was a lizard eater only, and would usually eat fense lizards, skinks, and would eat anoles from time to time.
Some times he would take them, and other times he would not. I would usually warm them up some before using them for food, and crush their nasal cavitys to stimulate scent, and place them in the cage. Over a two year period, that snake ate about 15 anoles.
They all came in alive, but I froze a bunch of them, as it was difficult to keep them fed. They had all lived for a couple of months in captivity before being frozen.
All I know for sure is that the Pygmy was paralized the day after eating the anole, and that the anole had been in with the Coral earlier that day. I did not see the Coral bite the lizard. But the anole was alive before being frozen, so if it was some sort of insecticide in the anole, it did not kill the anole at that time.
It was very wierd how the Pygmy acted. It was alive, but could not move. You could actually pick it up in your hand, and it could do nothing to react. It stayed in a stretched out fashion, with a small series of curves to its body.
I am speculating somewhat on this one, but none of the other anoles that the Coral ate caused any problems.
I am really suspicious of the Coral venom being the cause, but have no proof. Just speculation based on the situation.
Best Regards JohnZ
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RE: SNAKE VENOM
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by Phobos on February 27, 2008
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Interesting Cro.. It's a known fact that Elapid venoms can be absorbed by the digestive tract to the point of envenomation, however it's not a very effect route. I would wonder what the LD50 would be? Quite high I would guess. It's an interesting occurance you describe though and crys for an experiment or two to prove it out.
Cheers!
Al
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