The Rotterdam Zoo is providing cardboard glasses to make it appear that visitors are looking off to one side. These are meant to prevent incidents in which gorillas attack visitors for making eye contact. The introduction of these glasses follows an attack on a woman by an escaped gorilla and are sponsored by a local health-insurance company.
This is just insanity. Gorillas simply do not belong in zoos where people get to gawk at them day after day. It's time for some serious animal welfare reform and the removal of all non-human animals from zoos who fall within the personhood spectrum.