Which animal can walk on water?

The Jesus Christ Lizard is an extraordinary reptile which can run on water when threatened. This species is the most commonly encountered, especially along streams and lakes of Costa Rica. When threaten the Jesus Lizard 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 arms to its sides. The lizard is well balanced on water because its feet are large and equipped with flaps of skin along the toes, 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, which is just a little slower than its speed on land. Younger lizards 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 as the young one can. Once a lizard submerges, it continues swimming until it is sufficiently far from its predators. Although this lizard stays close to water to escape terrestrial predators, it swims only when necessary because there are aquatic animals which can also feed on the lizard if they ever got a chance.