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

The western cottonmouth is the only venomous water snake species in Texas. It comes in different hues, such as dark brown, olive brown, olive green, or nearly all black. They have wide dark bands ...

This iconic snake, with its bulbous head and red, yellow, and black bands, is famous as much for its potent venom as for the many rhymes—"Red and yellow, kill a fellow; red and black ...

The most venomous snakes in Texas are copperheads ... olive green or almost solid black, and marked with wide, dark bands. The cottonmouth is named because of the white tissue inside its mouth ...