I dont mind inteligent animals kept in zoos aslong as they are edequatly stimulated.
Taking the zoo duisburg again, they also keep gorillas, tigers, lions, spec bears and dolphins yet im not feeling sad watching their enclosures.
They are all large, varied and with lots of enritchment.
Just take a look at a part of one of their 2 large tiger habitats. It has lots of space, a shallow creek, climbing possibilitys of both rock and trees, a large waterpool, a cave and lots of other little thing to ensure that the tigers can do whatever they want, whenever they want. It also has enough space that they can easily hide or just be generally not botherd by any visitor, a must imo in mothern zoo design even if there will allways be some karen complaining about no shows, but the ability to not be seen if they want to be is imo one of the most important priviliges that any zoo animal should have imo
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