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Do poisonous snakes have a sharp pointed head?

I almost stepped on a snake out in my pasture this afternoon when I went to feed my horse. I noticed that the head was pointed and I remember learning in 5th grade Science a long time ago that poisonous snakes have sharp pointed heads and nonpoisonous ones have rounded heads. I wasn't sure how accurate this is, though. I can't get over the fact that I almost stepped on it! Btw, it was a black and white snake.

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Poisonous snakes do have a sharp pointed head; Venomous snakes have triangular heads, elliptical pupils, and upper jaws with fangs. They also have belly plates that expand all the way across their bodies to their blunt or rounded tails. Non-venomous snakes have curved heads, rounded pupils, sharp teeth and no fangs. Their belly plates are in two parts to their sharp, pointed tails.

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No I do not think

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Well some do like black mambas and some like puffadders and rattle snakes don't.

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I don't think I've ever heard of a Black Mamba or a Puffadder Snake.
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They are African. Not likely to see them in Alabama or Oklahoma. (The Black Racer kind of looks like a mamba)
The mamba is a very fast snake--faster than you can run. Be glad they cannot swim the ocean.
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This pointed head stuff is all BS. the most poisonous snake in the US is the coral snake; no pointed head and no fangs, very innocent looking. There are no black and white venomous snakes in the US.

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I always thought the most poisonous sanke in the US was the rattlesnake. I knew that the Coral Snake was ONE of the most poisonous snakes in the US but I've never seen one around here. I live in Alabama, btw.
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Alabama is probably close to the northernmost range for the coral snake. They are common here in Florida.
There are four venomous snakes in the US. The rattlesnake, the copperhead, the cottonmouth water moccasin and the coral snake. The first three are hemotoxic, that is the venom attacks the the circulatory system and eventually the heart. The coral snakes venom is neurotoxic and attacks the nervous system and eventually the brain. There is one poisonous lizard in the US, the gila monster whose venom is neurotoxic.
As to toxicity it is more a function of the amount of venom injected and the location of the bite than the species of the reptile.
Neurotoxic venom is more often fatal than hemotoxic.
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I live in SE Oklahoma and coral snakes are here.
The Cottonmouth here is a dull black and has white mouth (And stinks bad). There is aanother black snake here that is non venomous but it has a snow white belly. It may be a variety of King Snake; it does not have the thick-bodied look of Cottonmouth or the thin sleek look of a Coach Whip/Racer..
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The most poisonous snake is the rattle snake in the us.
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stick with the triangle head= poison rule but it's unnerving I almost stepped on a golpher snake in my pasture I'm 6'2" 240lbs and the sound I made belonged to a little girl lol (killed a Mohave green the day before in my defense)

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I think it's unnerving to see a snake whether they are poisonous or not, myself! I also learned in 5th grade Science that the nonpoisonous snakes do more good than harm, such as the gopher snake, for instance. For this reason, I would be reluctant to kill them. I hate to admit it but I screamed when I saw that one I almost stepped on, lol!
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I saw a snake one time when I was out riding horseback several years ago. I figured the snake wasn't poisonous because his head was rounded and my horse didn't react in any way. I just noticed that my horse was really staring at something on the ground and I looked and saw it was a long, black snake. I couldn't afford to scream since I was on horseback, lol! This was when daddy was living because I told him about it that night. He asked me what color the snake was and I told him. He said it was probably a Black Racer.
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lol true I kinda like snakes
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Yah snakes are OK but I sure like Horses better.
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me too
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I do not know where you are because you have listed so many places from such a vast chunk of the world's real estate, but I can be sure you are not in Kansas or Nebraska.
I am in Oklahoma where there is every kind of poisonous snake in the United States, Also, they all are living on my land! (Well at least a representative of every poisonous species of snake).
If it has rattles it is poisonous!
If it is fat and ugly dull black and around water (Not always true) it will throw its head back and open it's mouth to show a white inside--Cottonmouth--very bad to get tagged by this one.
If it is small with red, yellow, black bands (Red on yellow) it is poisonous and very poisonous with Neuro Toxic venom.
That only leaves the Copperhead. It is the most difficult to recognize since they have several variations to their color patterns. You might want to look at a picture of a few (Copperhead snake.com)
All the other snakes are not poisonous (No telling what you will find in the swamps behind Miami--some nut could have set free anything).
The head shape is not reliable since Coral Snakes have a very round head. Generally though you can learn to distinguish the puffy bulges behind the jaws that hold the poison. (Giving some snakes a triangular shaped head).

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oletafive, I live in Alabama. I also lived in Nashville, Tennessee for about two years where I went to college. I used to do a lot of traveling and the other places, I just visited. Thank you for your information, though. It was very informative. I looked at some pictures of some Copperheads on the internet last night and did a little reading on them. However, I never did find any the same color of the one I almost stepped on. I'm going to be very careful whenever I go out there from now on!
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Alabama has all the poisonous snakes Oklahoma has. The copperhead is a camaflage snake; this is not an agressive fellow and will not strike unless sorely pressed or stepped on. I have actually placed my hand several inches from one on two occasions and it just stayed very still. I moved on and did not molest them. They are very pretty (I am not a pet snake type of person) as far as snakes go (far as in far away from me).
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Depends on the snake. Also the term is venomous. Poison is ingested or eaten venom is injected. Many venomous snakes do have pointed heads but don't get close enough to see. If walking in an area suspected of snakes use a walking stick and stomp or walk somewhat heavily. Snakes feel vibrations in earth and will go the other way. Also if you come across one just turn around and leave them be I promise there not gonna go all ninja on you and hunt you down xD

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I just always called them poisonous snakes, myself. I didn't know there was a difference in the meaning of the terms. I wouldn't get close enough to see if their heads are pointed, anyway. I could just see it pretty plainly. Thank you for telling me to use a stick and walk heavily in snake infested areas. I never have heard of this but it's a good idea.
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Haha u can call them what u like I was just being all technical haha. And yeah my friend is a snake breeder and they go out and catch them so they taught me these tricks not to mention I use them ALOT. But hey np always love tlking about snakes
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You can also tell if a snake is poisonous by the shape of their pupils. Non-venomous snakes have round pupils, and if they are poisonous they will have "cat like" pupils. Not all venomous snakes have pointed heads. But most of them do.

Not saying you can just walk right up to any snake and look in it the eye.

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Oh yes, I once saw the Crocadile Hunter slide up to one of those Australian ferocious snakes, Tai Pan or something. It was on the roadway so the guy did not want someone to hit it with their vehicle. He hopped out and grabbed it by the tail then spent about ten minutes trying to keep it from biting while he recited how this snake had enough venom to kill 10,000 mice or 100 blokes.
Sure, we don't have those here but I am not about to grab some slithering by the tail just tolook in it's eyes.
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which is exactly why i JUST said you wouldnt do that
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Gotcha, If I am looking a snake in the ol eyeball, I really need to be someplace else.
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I wouldn't get close enough to look a snake in the eye, either :0! That wouldn't be very smart thinking, lol! I'm going to be very careful whenever I go out in my pasture from now on.
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This time of the year? Oh yah, they are out--I see more at night, most of the really big ones come out at night.
So do the turtles, possums, raccoons, and the whole range of critters. I am blessed to live right in the middle of it all. Alabama, does it have lots of critters where you are.
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