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During the latter part of the 20th century, zoos began to provide a new experience for visitors by replacing the iron bars and concrete walls of cages with protective moats, bigger animal areas, and recreated tropical rainforests.
(5 votes)
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During the 20th century, as humans have encroached more and more on animals' territory, zoos have come to be more than just places to view wild animals.
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Every animal has a story...and so does the staff at the San Diego Zoo.
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Animal health care is an important part of the zoo's mission, and staff members pay daily "house calls" to residents.
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