The book "Longevity of Mammals in Captivity; From the Living Collections of the World” (Richard Weigl; 2005) lists 52 years as the longevity record for a lar gibbon. That book is fifteen years old and "Ben" has obviously now greatly exceeded that age.I imagine Ben must be approaching, or even holding, a longevity record for his species?
The book by Weigl, mentioned above, lists a female lar gibbon as arriving at Paignton on 18th April 1961 and dying there on 3rd May 1994. Presumably this was "Sally".Have you any idea how long Ben and Sally were at Paignton?
There is a coy of the lar gibbon studbook available on-line. See link below.
European studbook for White-handed Gibbon (Hylobates lar)
According to this, Hamerton's male lar gibbon arrived at Paignton on 19th April 1961 and then went to Guernsey on 2nd February 1982.
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