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At the West Edmonton Mall in Alberta, the dolphins developed stress-induced ulcers. Shopping malls are enough to drive most individuals insane, given enough time spent in them. For Edmonton’s dolphins, though, there was no escape. Every day was the same. Shows were performed twice a day. The water tanks never got any larger. The light always remained artificial. The crowds of shoppers never stopped coming. The enervating elevator music never stopped playing. So it was hardly surprising that all four of the mall’s dolphins suffered from stress-related afflictions.
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Jason Hribal (Fear of the Animal Planet: The Hidden History of Animal Resistance (Counterpunch))