The modern, urban landscape of Houston, TX, makes it easy to forget the city is built on a bayou. In fact, 34 types of snakes still call the area home. Harmless rat snakes, rough green snakes, and garter snakes are often seen around yards, though residents may also run into four dan gerous species. Copperheads, the most widespread, live in wooded areas where their tan scales help them blend in. The most colorful of the venomous snakes in Houston, the Texas coral snake, is also the most deadly. Vivid red, black, and yellow stripes warn off predators and humans alike. Lastly, local cottonmouths and rattlesnakes are well known for scaring residents away with hissing noises and rattling sounds.