Scientists to read Cassius the giant crocodile's bones to find out exactly how old he was when he died

Saltwater crocodile, Cassia.

Scientists in Australia may soon learn exactly how old the giant crocodile Cassius was when he died after performing a necropsy on the record-breaking predator.

Cassius, who was the world's largest living captive crocodile, died in Australia this month after 40 years in captivity. Experts estimated the gigantic saltwater croc (Crocodylus porosus) could have been over 120 years old — but they don't know for sure.