ocean
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Joy Reidenberg: Weird whales
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Susan Casey: In awe of waves
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Gale McCullough citizen scientist
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Michael Blum: Failure and resiliency
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Casey Dunn: Evolving diversity
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David de Rothschild and the Plastiki expedition
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Quick takes: Casey Dunn
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John Priscu: Below the Antarctic ice
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Carl Safina: Fishing with long lines
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Enric Sala: Marine ecology
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Marcia McNutt: Ocean potential
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Ben Saunders: Exploring the Arctic
