Thread Snakes Slender Blind Snakes or Worm Snakes: Leptotyphlopidae

Slender blind snakes spend most of their time out of sight and below ground, sometimes as much as 49 feet (15 meters) down, but they will crawl out of their burrows at night or after a heavy rain. They are able to dig through loose, sandy soil but cannot dig into harder ground, so they probably use other animals' burrows or perhaps crawl along the paths of plant and tree roots when they are in tougher soil conditions. If they feel threatened, the snakes will squirm wildly, and those with tail spines will jab their attacker. Some species may also stiffen up their bodies and play dead in an attempt to survive an attack.

Although they are not sure, scientists suspect that all species lay eggs, rather than give birth to live baby snakes. The few snakes that have been studied mate in the spring and lay one to twelve eggs at a time in the summer.