Cassius the crocodile, which since 2011 has been declared the largest crocodile in the world, in captivity, turned 120 years old, writes "Live science" (Live science).

The crocodile, when captured in 1984, in Marineland Park, Australia, was estimated to be about 30 to 80 years old. Its length at that time was even 5,13 meters, so it was recorded in the Guinness Book of Records as the largest crocodile in the world.

"It was 5,13 meters long, and at least 15 centimeters were missing from its tail and snout. He was a big old crocodile back then. Crocodiles of that size are not normal," said Graham Webb, a crocodile researcher who participated in the capture of the crocodile.

After nearly 40 years, the crocodile still lives in Marineland, Australia, and its longevity is giving scientists new hope and insights.

Keepers at the park say that even though it is an adult, Cassius the crocodile still has a lot of energy and is always ready to interact.