This has to be a first! A rhino behind perspex. It actually does not look all that thick.Like aquarium perspex can be.
I am not sure whether it was the same enclosure as the one in this photograph but, on a visit to Cologne some years ago, I saw an Indian rhinoceros kept behind glass.....
Not just you I assume it has been tested by the rhinos, but what kind of glass or plexi could withstand one?????
There are several scratches on the inside of the glass that must have come from the rhinos' horns. I don't think they charge at it though...
Two rhinos live there for years and years. Actually, killer whale is bigger than the rhino and seen behind glass