Nala tree frogs were native to Ylesia. They were instrumental in the death of Aruk the Hutt. While serving as overlord on Ylesia, Kibbick discovered that nala tree frogs were most delicious and sent a shipment back to Nal Hutta to his uncle, Aruk. Aruk, too, found them to be delicious and ordered Teroenza to begin regular shipments of them to Nal Hutta. Aruk, who was immensely overweight and nearly a thousand years old, was in terrible health. His physician exhorted him that he stop eating so many nala tree frogs, but he refused, citing his age and experience as justification for doing as he pleased. When Teroenza contacted Jiliac and Jabba, he suggested using a toxin obtained by Jiliac via the nala tree frogs to murder Aruk.