Kaadu
this species of two-legged, flightless reptavian was native to the planet Naboo. Kaadu were fearless creatures, and were often used as steeds by Gungan warriors. The kaadu laid their eggs on land, often in fields, where they were often eaten by predators like the peko-peko. For this reason, the average clutch of kaadu eggs was quite large. In addition to being excellent runners, kaadu were also good swimmers, having lung capacity that would allow them to remain underwater for up to two hours. Note that Star Wars Episode I Adventures: The Final Battle describes the kaadu as a four-legged creature.