If the snake in question is a hognose snake, this behavior is not unusual and means that he has been frightened in some way and is playing dead. Otherwise this is strange behavior and you should consider consulting a vet.
no it does not
As long as there are no open sores or wounds in the mouth or throat, snake venom can be ingested as it is not poisonous.
No. The largest python on record was just short of 10 m long. No snake could ever open its mouth to 10 m.
The jaw of a snake is not attached to his skull. So he can open his mouth, incredibly wide. He doesnt chew, but swallows the rabbit whole.
If your in the southeastern united states it is most likely a cotton mouth which is poisonous. they also smell like cucumbers.
The Cottonmouth - a highly-venomous species.
it has a bone that lets it open its mouth to a 90 degree angle and it stretches its jaw out because it isn't exactly atached the it pulls the food in with separate jaws
Their jaws unhinge to allow their mouth to open wider.
The Tasmanian wolf, more correctly known as the Thylacine (and sometimes the Tasmanian tiger), is believed to be extinct. This is the only reason it cannot open its mouth. Prior to its extinction, this animal was able to open its jaws and mouth wider than a snake can - a feat unmatched by any other mammal.
Get a toothbrush and iodine. Make a solution with 1 cup of lukewarm water to 1/2oz of iodine. Hold the Mouth of the snake open, gently grab behind the head and jaw with one hand and use the toothbrush to open the snakes mouth (put the tooth brush gently in the middle of the mouth between the teeth to open). Then brush the teeth of the snake, top and bottom. You want to get the iodine solution to penetrate the rot or puss bulbs. Do this at least 1 time per day if not more.
It depends what species you're referring to - It could be anywhere from a few inches (for the species called a 'Flowerpot snake') right up to 30-plus feet (for a full-grown Reticulated python) !
snake in their active position make our hood enlarges and open the mouth and produce hissing sound more strongly to frightened our enemies.