why does the basilisk lizard run on water
Common basilisk When startled, the common basilisk escapes by speeding to the nearest edge of water—and continues sprinting. The lizard runs on only its hind legs in an erect position, holding its fore legs to its sides. This basilisk is so adroit on water because its feet are large and equipped with flaps of skin along the toes that allow it to catch on tiny air bubbles. When moving quickly, the lizard can cross a surface of water before sinking. On water, it runs an average speed of 8.4 km/h (or 5.2 mph), which is just a little slower than its speed on land. Younger basilisks can run 10 to 20 meters on water, while adults cross only a few meters before sinking. Adults do not move slowly, but they weigh more and cannot sprint for as long a time. Once a basilisk submerges, it continues swimming until it is sufficiently far from its pursuer—if the predator has followed past the bank. Although this lizard stays close to water to escape terrestrial predators, it swims only when necessary because some other aquatic animals would eat the basilisk given the chance.