From the July 6, 1896 Brooklyn Daily Eagle:

“The officials of a company which makes a feature of insuring the lives of animals notified the management of Glen Island today that they would not pay the policy on the life of Franko, the monkey which committed suicide yesterday. They claim that the suicide clause hold good in this instance the same as in the case of a man. It is claimed that Franko deliberately hanged himself because he was desperately in love with a female monkey in the same cage. Last week he was removed to another cage and the suicide followed.”