Jacen Solo's rock lizardedit
From Wookieepedia, the Star Wars wiki.
This rock lizard was kept as a pet by Jacen Solo. After some time, it always tried to escape from its cage. It almost hurt itself many times and even when Jacen tried to heal it through the Force, it would not stay calm. Jacen came to his uncle, Luke Skywalker for an answer to the problem. The situation reminded Luke of Huey, a male dewback that was a pet of Luke's friend Windy, back on Tatooine. One day, Huey was banging on the exit gate. Windy and his father woke up. They came outside and Windy's father suggested letting Huey go, knowing it was dewback mating season. Windy let Huey go and it returned a few weeks later. Luke told the story to Jacen who found the strength to release his rock lizard into the wild. Eventually, his rock lizard came back with a sack of eggs, and placed them by a heat rock where they would be warm.
