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Enrichment for Giant Pacific Octopuses: Happy as a Clam?

What is environmental enrichment? During the last several decades, zoos and aquariums have come to realize (perhaps belatedly) that animals kept in captivity need environmental enrichment for their well-being (Seidensticher & Forthman, 1998). Early zoos and aquariums tried to show as many animals as possible; hence, their exhibits were frequently small and bare to permit easy viewing, cleaning, and sterilization. Now, all have come to realize that captive animals need environmental enrichment for their health and for the education and increased expectations of visitors to zoos and aquariums.