The rattlesnake is readily identified by the rattle found at the tail and a triangularly shaped head. As a member of the pit viper family, it has a heat-sensitive pit in the center of its head that locates prey. Coral snakes are red, yellow, and black resembling the southern US kingsnake. They are common in North America.
Snakebites usually occur because of accidental or deliberate contact.
Not all bites result in poisonings. Contact with larger snakes tends to cause more severe bites. Antivenom is available to counteract the poison in the bite of pit vipers, the eastern coral snake, and Texas coral snake. As with scorpions, the local and systemic reactions are usually inversely proportional. In other words, if you have a large reaction at the site of the bite, you may not develop an overall feeling of illness.