The document compares the coral snake and scarlet kingsnake. Coral snakes have red, yellow/white, and black bands and are venomous. Scarlet kingsnakes have a similar tri-color banding pattern but are non-venomous. The rhyme "red on yellow, kill a fellow; red on black, friend of Jack" can help distinguish the two. Both snakes are small, though coral snakes average 3 feet and kingsnakes are found in the southeastern United States. The document includes pictures of each snake.