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10:30 pm
Changing Seas
"Sinking The Vandenberg"
In the turquoise blue waters of the Florida Keys, a new attraction is drawing scuba divers from around the world: The USNS General Hoyt S. Vandenberg. Laid to rest in the Florida Keys National Marine Sanctuary, the Vandenberg is the world's second largest intentionally sunk shipwreck. In her last mission as an artificial reef, this massive ship is already attracting a variety of fish and other marine life. D
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11:00 pm
Nature
"Moment of Impact: Hunters & Herds"
Wildebeest, built like marathon runners, are up against lions, born sprinters; the chance of being lunch lessens if the wildebeest maintain a 50-yard safety zone when lions are near. California ground squirrels increase heat profiles by flicking tails, which confuses rattlesnakes that hunt using heat-detecting organs. Part 1 of 2G
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