In the general sense, we cannot say that all snakes are immune to their own venom. Snake venom in a sense, is snake spit. The primary reason why snakes aren't affected by their own venom is because they are isolated from their own bloodstream. read more
The primary reason why snakes aren't affected by their own venom is because they are isolated from their own bloodstream. It is secreted from modified salivary glands and is usually stored in ducts. When the snake bites a victim, the venom is released from the ducts and is injected into the blood-stream of the victim. read more