Half of all zoo's wolf enclosures are empty because it fits our expecations not being able to spot them
Please count the number of times you went to a zoo, saw a wolf enclosure but no animal in sight (not in SEA, you dont care about animal wellbeing and would throw them in a concrete cage). I had no problem pointing out half of the zoos I ever been to.
Nobody would notice if the enclosure was actually empty and costs would be cut by 95% for this specific enclosure.