While the vast majority of Texas' snakes are completely harmless, about 15% are venomous, including rattlesnakes, ...

is another one of many venomous black and white snakes. Like the black-tailed rattlesnake, it is found in the United States ...

Look for red, yellow, black or white bands or rings around their ... tail to see if it is calm or frightened. A curled-up tail means the snake feels threatened. Commonly found in the Southwest ...