The teens said they found the mutant creature when it was alive, however it began advancing towards them and they threw rocks and sticks at it, killing the creature.
It reportedly emerged from a cave behind a waterfall on the shores of a lake near the small town of Cerro Azul. www.illawarramercury.com.au
"Disbelieving parents went to investigate and were amazed to see the body had washed up on the shore. It has since been picked apart by buzzards. " http://www.metro.co.uk