I must say that I like the idea of spikes keeping the visitors away from harrassing the animals, as I am normally accustomed to this method being used to keep animals from escaping old and ugly zoo enclosures.
I must say that I like the idea of spikes keeping the visitors away from harrassing the animals, as I am normally accustomed to this method being used to keep animals from escaping old and ugly zoo enclosures.
At a guess. i would actually say. The spikes were placed there to stop people leaving hand/finger marks on the viewing window. As the maintence required would be allot.