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Non-Lethal Venomous snakes?

Mike55520

New member
im currently helping a friend with some assignment concerning snakes, part of his assignment is to list a few snakes that are venomous but not capable of killing a full grown healthy human.preferably ones within the western united states ( were in Colorado, you see)
 
I have no idea about out west, but on the east coast...

Copperheads have fairly weak venom. I don't believe they pose THAT much of a threat to humans if bitten, but of course with children and the elderly...

Pygmy rattlesnakes don't have an extremely potent venom either. That and their small size makes it difficult for them to bring a person down.

I think out west that the sidewinder isn't that bad. Of course, I'm just trying to remember what I've heard and read, so I'm not 100% sure. Would be worthwhile to look it up.
 
Copperheads...

are a good choice. They get as far as Arkansas or maybe a little further. The Arizona Ridge-nose Rattlesnake is a handsome little devil.
 
Tula_Montage said:
Western Hognose...
Maybe do a little research on it as im not 100% sure.

GIVE a REALY painfully bite, not even as painfull as a copperhead!! :eek1:

or so ive heard... :grin01:
 
Copperheads...

Cflaguy said:
are a good choice. They get as far as Arkansas or maybe a little further.

They are plentiful in Texas, in three subspecies no less. Those would be the Southern Copperhead, Broadbanded Copperhead, and Trans-Pecos Copperhead. Trans-pecos are found in West Texas, and could possibly be found in New Mexico as well.
 
Here are some Rear-fanged Snakes from around my area.

Eastern Worm Snake
Ringneck Snake
Eastern Hognose Snake
Southern Hognose Snake
Pine Woods Snake
Southeastern Crowned Snake
 
What about the...

BeckyG said:
They are plentiful in Texas, in three subspecies no less. Those would be the Southern Copperhead, Broadbanded Copperhead, and Trans-Pecos Copperhead. Trans-pecos are found in West Texas, and could possibly be found in New Mexico as well.

Osage Copperhead? In the old Audubon Field Guide they had a phase of the Osage that was solid copper, no bands. Beautiful snakes.
And as I remember, the hognose snakes are rearfanged, but have no venom glands. They use their fangs to pop toads. But like garter snakes, they do have a mild toxin in their saliva to counteract the venom of said toads.
 
I just had to post these...

The Arizona Ridge-Nose Rattlesnake...
 

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Joejr14 said:
I have no idea about out west, but on the east coast...

Copperheads have fairly weak venom. I don't believe they pose THAT much of a threat to humans if bitten, but of course with children and the elderly...

Pygmy rattlesnakes don't have an extremely potent venom either. That and their small size makes it difficult for them to bring a person down.

I think out west that the sidewinder isn't that bad. Of course, I'm just trying to remember what I've heard and read, so I'm not 100% sure. Would be worthwhile to look it up.

I really think sidewinders actually are one of the most venomous rattlers! Learned that form that fabulous venom specialist from Venom ER on Discovery :rolleyes:
 
Venom facts for rattlesnakes found in California:

Sidewinder -- Venom is of moderate toxicity. Human lethal dose is 40 mg and people have died from envenomation. Average venom delivered per bite is 20-63 mg. Venom is still lethal to mice and cats after 27 years of storage. Venom causes deep tissue necrosis at site of bite.

Speckled rattlesnake -- Venom is very potent. Minimum lethal dosage for 350 gram pigeon is 0.002-0.04 mg, for mice 0.05-0.12 mg. Adults contain up to 227 mg of venom (dry weight) but inject 0.16 mg. Dried venom potency undiminished after 27 years storage.

Red diamond rattlesnake -- Long fangs (over 1/2 inch). Low in toxicity compared to other rattlesnakes but this is a large species capable of delivering large amounts of venom. Lethal dose for people is about 100 mg and 150-350 mg (up to 1.65 ml) is delivered per bite. People have died from envenomation. Lethality of venom decreases only slightly after 27 years, producing complete neuromuscular block of a cat diaphragm in 22 minutes. Tissue damaging properties of venom are 6-15 times greater in adults than juveniles.

Southern Pacific rattlesnake (western rattlesnake) -- Venom primarily hemorrhagic (affecting blood) but some subspecies contain neurotoxic components. Toxicity of venom is greater than some larger species such as the western diamondback. This coupled with the high irritability of some individuals makes this a dangerous snake. Hemorrhagic, neurologic and proteolytic activity can all result from the same bite. Hemorrhagic activity in 18 minutes accompanied by some paralysis. Death in untreated cases may occur in 18 hours or up to 5 days. Lethal venom dose for humans is 70-160 mg and adults can produce up to 112 mg of venom (dried). Dried venom toxic to mice for at least 27 years.

Western diamond back rattlesnake -- Fangs over 1/2 inch in length. Venom highly hemorrhagic. 53% of the enzymes cause breakdown of the circulatory system, 17% are neurotoxic, and 30% digest proteins. Hemorrhaging from vascular breakdown occurs in only 6 minutes. Stored venom loses little potency after 17 years. Lethal dose to humans is about 100 mg and snakes may contain up to 300 mg (dried). One snake yielded 1,145 mg (3.9 ml liquid)! This species probably responsible for more human deaths than any other snake in the U.S. Symptoms following bites include intense burning, vomiting, breathing difficulties, lowered blood pressure, increased heart rate, and secondary gangrene infection.

Mojave rattlesnake -- Neurotoxic venom is extremely virulent (10 times more toxic than any other rattlesnake in the U.S.), affecting heart, skeletal muscles and neuromuscular junctions. One bite sufficient to kill a human: lethal dose is only 10-15 mg and one adult can yield 141 mg (dried). Death occurs in a high frequency of untreated cases.
 
California's smallest rattlesnake species, this elegant snake rarely reaches 0.75 m in length. Famous for their specialized method of moving efficiently over loose sand by pushing straight down in only two places at a time, they can also be common on firmer substrates. Due to their small size (and, therefore, low venom yield) and comparatively low venom potency, their bites are usually not as serious as bites by other species. Two subspecies occur nearby, the Mohave Desert sidewinder (C. c. cerastes) and the Colorado Desert sidewinder (C. c. laterorepens).

http://www.llu.edu/llumc/emergency/venom-er/scal-snakes.html?PHPSESSID=fdc15ebc7f4d520704fc41b12461
 
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