When top predators disappeared from Mozambique's Gorongosa National Park, other animals fell into unusual patterns. Now scientists are reintroducing wild dogs to restore the park's "landscape of fear" and with it the natural balance of the ecosystem.
Duration: 56 minutes and 46 seconds
Episode Number: 4709
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PBS' premier science series helps viewers of all ages explore the science behind the headlines.
Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.
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Sun, Jul 20 | 12:00 A.M. | When Whales Could Walk NHPBS (11.1) |
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