When I was on my zoo rotation, the preceptor gave us a good talk about zoo responsibility and that situation at the Pittsburgh Zoo came up (I'm assuming it's the same one, because I remember the mention of the painted dogs). He said that, essentially, the zoo staff had to shoot the dogs in order to cover their own butts and even then the lady turned around and threatened to sue them for negligence or something. Our preceptor was under the impression, and led us to believe that the case would have actually had merit and the zoo would have been found guilty. Such a shame that the zoo could be targeted for one person's ineptitude.
She did end up settling with the zoo privately. Apparently zoo employees brought safety concerns up numerous times regarding the platform the kid fell from, but no changes were made. That's just what I had read though, the media really doesn't do zoo controversy well lol.
The way I look at it is that the primary responsibility of any zoo is guest safety, hands down. Many, many,
many exhibits in this country (and probably around the world) are outdated. I feel it's the zoo's unfortunate job to foresee and find ways to avoid guests climbing over barriers and entering/falling into exhibits, something that seems to be increasing lately. People will have unmanageable children, mental illnesses, idiot tendencies, etc. I can tell you right now that, if you wanted to, you could easily hop into the chimp and gorilla exhibits if you went off a path at my home zoo. The
designated viewing areas have extremely tall window walls, though. Same with any of the bear, rhino, etc. exhibits. The constant battle for animal visibility while trying to keep things safe (but without iron bars, for example) puts a lot of pressure on zoos and you have to find a happy medium somehow. It's not a popular opinion, but I think the zoo made the right decision. Based on what my friend told me (she keeps down there) about what really happened, I would have come to the same conclusion had I been the one holding the gun.
99.999999999999999% of zoo guests will never find them selves in any sort of danger when they visit a zoo and would never dream of causing any problems. It's that negligible number that the zoo has to keep in mind when remodeling and building new exhibits. Definitely not saying the zoo was completely at fault for this, but based on the descriptions I read of what happened and what the 'barrier' was like, I can easily see the same thing happening at multiple zoos I've visited. Unfortunately, not every zoo has the money to surround their animals in 10 foot tall window walls, even though it could be the safest thing for both guests and the collection...
Also, side comment....I've never had any kids so maybe this is normal, but I find it interesting that this 4 year old was so adamant about jumping down 12 feet to join a gorilla that he actually did it. I feel that 4 is old enough to start recognizing the basics of 'safe' and 'not safe.' There could be details about this kid that we don't know, but based on witness stories, it just seems really weird to me. Apparently he was fighting his mom because he desperately wanted to get in that exhibit. I guess the mom might face charges for this, and I can't say I disagree with that.
Overall, it's seriously sad. It's hard enough for zoo staff to lose an animal for health reasons, but entirely different to lose one over something that really was completely avoidable.