Mojave rattlers may have a greenish tint and have an alternating pattern of wide white bands and narrow black bands on the tail. Snake bites are rare in Big Bend, yet many visitors are concerned about encountering snakes. To avoid being bitten by a snake, watch where you put your hands and feet, always carry a flashlight at night, and never disturb or pick up any snake. If you are bitten by a snake, remain calm, try to identify the snake that bit you, and get medical assistance as soon as possible. Keep in mind that physical exertion spreads the flow of venom through the body.
Many hikers carry snake bite kits, which are available at most sporting goods stores.
Lizards Most lizards move so swiftly that they re impossible to identify. You ll notice more if you listen for rustling, especially around areas with leaf litter. The most frequently seen lizard here is the southwestern earless lizard, found throughout the desert. Though fast-moving, it is territorial and rarely goes far. It often perches on rocks and performs territorial and mating displays consisting of pushups.