Megacroc

The Megacroc is a giant, semi-sapient creature encountered by Spaceman of Futuron on Oasis. It first appears when Spaceman walks onto its head; the creature tries to eat him, but Spaceman quickly apologizes, finding the beast both intelligent and friendly. It carries Spaceman and his friends safely through the Oasian swamps, but leaves them before they reach the miners' compound.