original: Captive longevity is 20 to 30 years, with rare accounts of over 40 years, Reports of a individual living to 40 years in Philadelphia Zoo.
simplifications: Captive longevity is 20 to 30 years, with rare accounts of over 40 years.  One is reported as living to 40 years in Philadelphia Zoo. When caged animal live for 20 to 30 years with rare accounts of over 40 years, based on reports from Philadelphia Zoo. Captive longevity is 20 to 30 years.One a individual lived to 40 years in Philadelphia Zoo. There are rare accounts of over 40 years too. Lifespan when captive is 20 to 30 years, with rare cases of over 40 years. Reports of an individual living to 40 years in Philadelphia Zoo. They live in captivity for 20 to 30 years, and rarely over 40 years. There is a report of one living to 40 years in Philadelphia Zoo. They live around 20 to 30 years when kept by humans. One individual is said to have to be 40 in the Philadelphia Zoo. The length of being captive is 20 to 30 years, with rare accounts of over 40 years. There are reports of an individual living to 40 years in Philadelphia Zoo. Captive lifespan is 20 to 30 years. There are rare cases of over 40 years, specifically of an individual living to 40 years in Philadelphia Zoo. Captives stay alive for 20 to 30 years with a very few going over 40 years. There were reports of an individual that lived up to 40 years in Philadelphia Zoo. Typical caged life is 20-30 years with some reports over 40 years, like the report of one at the Philadelphia Zoo.