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
A snake can open its mouth wide enough to swallow prey that is larger than its own head.
A snake can open its mouth very wide, up to about four times the diameter of its body, in order to swallow prey that is larger than its head.
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
A snake's mouth can open very wide thanks to its flexible jaws. Some snakes can open their mouths to accommodate prey that is larger than their own head, allowing them to swallow their food whole. The size of a snake's mouth opening varies depending on the species and size of the snake.
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.