At the Hamburg-Thread we started, after in Hamburg drowned a Orang, a discussion about incidents with apes and water-moats.
I also remember a Gibbon in Leipzig a few years ago...
So, what do you know?
I listed the ones I knew of somewhere on another thread once.
From memory;
Bronx 1951. Male gorilla fell in and drowned
Frankfurt 1960's Male gorilla fell in(heart attack?) and drowned.
"" "" " chimpanzee also drowned? (they filled in the moat afterward but now the new apehouse has water barriers again...)
Longleat. 1970's. male gorilla drowned.
Chester.1960's Young orangutan drowned.
Dublin. young orangutan drowned ?(I think)
Chimpanzee drowned.
Hanover.1990's. male Gorilla 'Arti' drowned.
Hagenbeck (yesterday). female Orangutan drowned.
Arnhem- I think an orangutan may have drowned there also.
There may be others I don't know about....
I also remember a Gibbon in Leipzig a few years ago...
So, what do you know?