WEIGHING more than a ton, measuring an incredible 18ft long, and being some 120 years old - this is world's biggest crocodile, Cassius. Now tucked away on an island off the coast of Australia, the monstrous behemoth once prowled the nation's waterways - attacking boats and snatching cattle. The prehistoric beast was officially recognised by Guinness World Record in 2011 as the world's largest living saltwater croc.
The massive reptile has become the star attraction at the Marineland Melanesia Crocodile Habitat on Green Island, off the coast of Cairns , Queensland . Missing his right leg, he is estimated to be 120 years old, however scientists aren't sure how old the gnarly beast is. Cassius briefly lost the title in 2012 to a 20ft saltwater crocodile called Lolong, who was caught in the Philippines.
However, he regained his title after the death of Lolong in February 2013. Considered a problem croc in 1984, Cassius was captured near a cattle ranch on the Finniss River, southwest of Darwin, in the Northern Territory. The aggressive croc was accused of snatching cattle and attacking boats.
At the time of his capture, Cassius was estimated to be between 30 and 80 years old, and was the biggest crocodile ever caught alive in Australia. After he was captured in 1984, he was transported to Green Island in 1987 by crocodile hunter George Craig, who had opened Marineland Melanesia in 1969. According to professor Grahame Webb, a crocodile researcher who participated in Cassius' captur.