Nicknamed Pearl, the reptile was seen swimming around in the Adelaide River near Darwin on Sunday.
A huge pearl weighing in excess of 34kg is set to be officially recognized as the largest of all time.
Some believe that Buddhist monks are able to accumulate a mysterious substance within their bodies.
A daily rasher of bacon might not seem very healthy but 105-year-old Pearl Cantrell swears by it.
An ancient oyster ten times larger than its modern counterparts could contain a golf ball sized pearl.