Cassius, the world's largest crocodile in captivity, has died at a wildlife sanctuary in Australia. Measuring 5.48 meters (18 feet) and weighing over one ton, Cassius was thought to be over 110 years old at the time of his death. He had been living at the Marineland Melanesia Crocodile Habitat on Green Island since 1987 after being captured in the Northern Territory in 1984. Cassius held the Guinness World Record for the largest crocodile in captivity since 2011, regaining the title after the death of Lolong in 2013. Despite his declining health since October 15, the sanctuary celebrated his long life, which exceeded the average lifespan of saltwater crocodiles in the wild. Cassius was a key tourist attraction and will be fondly remembered by the sanctuary staff and visitors.