A lizard called the sandfish
lives in North African deserts, and also is a popular pet in the U.S. The adult lizards are about eight inches (20 centimeters)
long. It has an unusual ability for moving about: When buried in sand, the lizard tucks its limbs against its sides and wiggles
forward like a snake, wiggling from side to side. Its eyes and nose are designed for protection in the sand. The underground
lizard movement has caught the interest of robotics engineers at the Georgia Institute of Technology in Atlanta and also Carnegie
Mellon University in Pittsburgh.